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Human Anatomy Flashcards

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14749548939What is anatomy?study of structure0
14749552561PhysiologyStudy of function1
14749558392Microscopic Anatomystructures too small to be seen with the naked eye2
14749560059Gross Anatomystructures that can be seen with the naked eye3
14749570675comparative anatomyexamines similarities and differences in anatomy of species4
14749576524Developmental Anatomystudy of structure changes within an individual from conception through maturity5
14749586082embryology anatomystudy of developmental changes that occur before birth6
14749592768regional anatomystudy of structures within a single region ex. the head and neck or abdomen7
14749601415systemic anatomystudy of structures involved with a specific activity ex. skeletal, digestion or reproduction8
14749605969surface anatomystudy of internal structures as their locations relate to regions of skin or other surface markings9
14749616935What is the structural organization of the human body?Atoms(smallest unit), molecules, cells, tissue, organs, systems, and organism(largest unit)10
14749636599Example of atomscarbon, hydrogen, oxygen, nitrogen11
14749636600example of a moleculeH2O12
14749638085example of cellsblood, muscle, nerve13
14749640406example of tissuecells that come together to perform a function14
14749646253example of organsheart, lungs, brain( collection of tissues that come together)15
14749651630example of systemsorgans that work together to provide a function16
14749654837example of organismhuman, bird, fish, tree, flower17
14749660383What is the structural organization of the human body in order?Chemical level, cellular level, tissue level, organ level, organ system level, organismal level18
14749668024How many organ systems are in the human body?1119
14749672130What does "Run Mrs. Lidec" stand for?Respiratory, urinary, nervous, muscular, reproductive, skeletal, lymphatics, integumentary, digestive, endocrinary, circulatory, and cardiovascular20
14749698586What are the characteristics of the anatomic position?Standing upright, feet parallel and on the floor, head level and looking forward, arms at side of body, palms facing forward and thumbs pointing away from the body21
14749707174What is a sectionan actual cut or slice through a structure or a piece removed by slicing a structure22
14749713388what are planesImaginary flat surfaces that pass through the body or an organ. There are three standard anatomic planes.23
14749732192coronal (frontal) planedivides body into anterior(front) and posterior(back) parts24
14749739797transverse (horizontal) planedivides the body into superior(upper) and inferior(lower) parts25
14749746418Midsagittal(median) plane-divides the body into equal left and right halves -other sagittal planes divide the body into unequal left and right parts26
14749776923What are the anatomic directions?Anterior vs. posterior Superior vs. inferior Medial vs. lateral Proximal vs. distal27
14749783197AnteriorIn front of; toward the front surface28
14749786712PosteriorIn back of; toward the back surface29
14749795221The stomach is ____ to the spinal cord (anterior or posterior)anterior30
14749798055The heart is ____ to the sternum (anterior or posterior)posterior31
14749800994Superiorcloser to the head32
14749803161Inferiorcloser to the feet33
14749806247the knee is ____ to the ankle (superior or inferior)superior34
14749820088the stomach is ____ to the heart (superior or inferior)inferior35
14749822345medialToward the midline of the body36
14749822346LateralAway from the midline of the body37
14749827506The lungs are ___ to the shoulders (medial or lateral)medial38
14749832950the arms are___ to the heart (medial or lateral)lateral39
14749832951proximalcloser to the trunk40
14749835285Distalaway from the trunk41
14749841501the femur is ____ to the tibia (proximal or distal)proximal42
14749845850the talus is ____ to the tibia (proximal or distal)distal43
14749848641the elbow is ___ to the hand (proximal or distal)proximal44
14749851761the wrist is ___ to the elbow (proximal or distal)distal45
14749851762DorsalAt the back side of the human body46
14749855197VentralAt the belly side of the human body47
14749857963CaudalAt the rear or tail end48
14749861279CranialAt the head end of the body49
14749862681deepon the inside, underneath another structure50
14749866034superficialon the outside51
14749872291How many major regions is the body divided into?252
14749877436axialRelating to head, neck, and trunk, (the vertical axis of the body)53
14749881488appendicularupper and lower limbs (appendages)54
14749893392what are the major body cavities?posterior(cranial and vertebral) and ventral cavities(thoracic and abdominopelvic)55
14749899847cranial cavityformed by the skull bones, contains the brain56
14749917780Verebral cavityformed by vertebral column (vertebrae)57
14749923453thoracic cavitycontains heart and lungs (the superior cavity)58
14749927448abdominopelvic cavityabdominal cavity and pelvic cavity (the inferior cavity) -It's physically separated by the diaphragm59
14749945266ventral cavities(thoracic and abdominopelvic) are lined by a thin _____.serous membrane60
14900912593parietal layerlines the internal surface of the body wall61
14900915936visceral layercovers the external surface of organs in the cavity62
14900931191What do the parietal layer and visceral layer do?They produce a small amount of fluid to lubricate the organs, and protect against friction.63
14900946979mediastinumWithin the thoracic cavity, where the heart is located in a middle compartment64
14900959899what cavity are the lungs located?pleural cavity in the thoracic cavity65
14900982111how many serous membranes does the thoracic cavity have?266
14900984865Pericardiumserous membrane surrounding the heart67
14900994215pleuraserous membrane surrounding the lungs68
14901002609visceral pericardiumcovers the surface of the heart69
14901014893perietal pericardiumsurrounding heart70
14901046665pericardial cavitythe layers between the visceral pericardium and the perietal pericardium71
14901056097pericardial effusionabnormal accumulation of serous fluid in the pericardial cavity72
14982184704abdominopelvic cavitytwo continuous cavities with no physical separation.73
14982218302Abdominal cavityThe superior portion of the abdominopelvic cavity74
14982225740pelvic cavitythe inferior part of the abdominopelvic cavity75
14982249540what is the anatomical boundary between the abdominal cavity and pelvic cavity?An imaginary horizontal line drawn across the superior border of both hip bones.76
14982328661The serous membrane of the abdominopelvic cavity?peritoneum77
14982370443The outer surface of organsvisceral peritoneum78
14982406751The lining of the internal walls and not directly in contact with the organs is called?Parietal peritoneum79
14982425720What is the space between the layers of the visceral peritoneum and the parietal peritoneum?peritoneal cavity80
14982438612the study of cellscytology81
14982455962What are cells measured in and how are they visible?They are measured in micrometers and only visible by microscopy82
15002612308Light microscopyvisible light passes through the cell83
15002623420transmission elevtron microscopy-a beam of electrons passes through the cell -can magnify about 100x greater than LM84
15002642541Scanning electron microscopybeam of electrons bounces off surface of the cell to provide a 3D study of the cell surface85
15002652818What do human body cells do?covering, lining, storage, movement, connection, defense, communication, reproduction86
15002677361What three basic parts of cells are found in all human cells?plasma (cell) membrane, cytoplasm, nucleus87
15002748038What are the protein-specific functions of the plasma(cell) membrane?Transport, intercellular connection, anchorage for the cytoskeleton, enzyme activity, cell-cell recognition, signal transduction88
15002833468What are the two general types of membrane transport?passive and active transport89
15002843277Passive transportdoes not require energy from the cell, materials move from area of higher concentration "down" to area of lower concentration is diffusion90
15002858638active transportrequires energy from the cell, materials are moved up or against concentration gradient91
15002891199What are the 4 types of diffusion?simple diffusion, osmosis, facilitated diffusion, bulk filtration92
15002905234Simple diffusionsmall/nonpolar molecules transported93
15002918563osmosismovement of water from region of higher to lower concentration94
15002929051facilitated diffusionlarge/polar molecules-requires a specific transport protein (integral membrane protein)95
15002952187bulk filtrationDiffusion of both liquids (solvents) and dissolved molecules (solutes) forced across a plasma membrane by hydrostatic pressure96
15003743242active transportmovement of a molecule against the concentration gradient97
15003773408Bulk transportmoves large molecules or bulk structures across the plasma membrane (requires energy from the cell)98
15003790656exocytosisout of the cell99
15003795070endocytosismaterials are taken into the cell and packaged into vesicles100
15003842660Cytoplasmall materials between plasma membrane and nucleus101
15003853012what are the materials in the cytoplasmcytosol, inclusions, organelles102
15003863710cytosola viscous like fluid containing many different dissolved substances such as ions, nutrients, proteins, carbohydrates, and amino acids103
15003881372inclusionslarge storage aggregates of complex molecules found in the cytosol (ex. melanin)104
15003904783organelleslittle organs which perform specific functions in the cell (membrane-bound and non-membrane bound)105
15003931834membrane bound organellesEukaryotes106
15003942286non-membrane bound organellesribosomes, cytoskeleton, centrosome, proteasomes107
15065372453Endoplasmic ReticulumA network of intracellular membrane-bound tunnels108
15065384241cisternaeenclosed spaces109
15065395485What are the two types of endoplasmic reticulum?smooth endoplasmic reticulum and rough endoplasmic reticulum110
15065398768Smooth Endoplasmic ReticulumWalls have a smooth appearance. An endomembrane system where lipids are synthesized, calcium levels are regulated, and toxic substances are broken down, and carbohydrates are metabolized.111
15065424980Rough Endoplasmic ReticulumSystem of internal membranes within the cytoplasm. Membranes are rough due to the presence of ribosomes. functions in transport of substances such as proteins within the cytoplasm112
15065455718Golgi apparatusStacked cisternae whose lateral edges bulge, pinch off and give rise to small transport and secretory vesicles. It receives proteins and lipids from the RER for modification, sorting and packaging.113
15065504674LysosomesUses chemicals to break down food and worn out cell parts114
15065515858MitochondriaPowerhouse of the cell115
15065524113free ribosomesfloat unattached within the cytosol116
15065535161fixed ribosomesattached to the outer surface of RER117
15065538568cytoskeletonproteins organized in the cytosol as solid filaments or hollow tubes118
15065644432What are the three main protein typesmicrofilaments, intermediate filaments, microtubules119
15065686486Centrosomea pair of centrioles at right angles to each other120
15065694680centriolenine sets of microtubule triplets(involved in organizing microtubules)121
15065754786What do cilia and flagella do?help with movement122
15065758995ciliagrouped on cells that move objects across their surface (cells of the respiratory tree and oviduct123
15065782109flagellalonger, usually singular, to propel a cell (ex. sperm)124
15065800201nucleusControl center of the cell. Contains DNA.125
15065811591ChromatinClusters of DNA, RNA, and proteins in the nucleus of a cell126
15065843647Chromosomesduring cell division chromatin coils tightly to form this127
15065992858genesstretches of DNA that code for proteins128
15066000293How many genes are in the human genome?25,000-30,000 (about 6 feet of DNA)129
15066011767Interphasethe resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.130
15066022672mitotic phasewhen the cell divides131
15066043623What are the interphase stagesG1, S, G2132
15066048817G1 phaseThe first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis begins.133
15066052516S phaseDNA replication134
15069665719Mitotic PhaseMitotic cell division is the process by which two daughter cells are produced that are genetically identical t the original mother cell135
15069704282What events occur in the mitotic phase?Mitosis and cytokinesis136
15069717509mitosisdivision of nucleus/DNA137
15069747526cytokinesisdivision of the cytoplasm and the mother cell138
15069759472What stages does mitosis go through?(PMAT) Prophase, metaphase, anaphase, telephase139
15069775287ProphaseChromosomes become visable, nuclear envelop dissolves, spindle fibers forms140
15069812943MetaphaseChromosomes line up along the middle of the plate, spindle fibers attach to the centromere of sister chromatids and form an oval structure array called the mitotic spindle.141
15069855155anaphaseSpindle fibers pull sister chromatids apart to opposite ends of the dividing cell142
15069870020Telophasethe final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.143
15069937153Tissuegroup of cells performing the same function144
15069943762What are the 4 types of tissues?epithelial, connective, muscle, and nervous tissue145
15069959394What do epithelial cells cover?All exposed surfaces of the body146
15069970748Apical surfacean upper free surface exposed to the body exterior or the cavity of an internal organ147
15069977711basal surfacesurface of an epithelial cell that faces the basement membrane and comes in contact with underlying cells148
15070069153Epithelial cells are avascular which means..they are without blood or blood vessels149
15070082959How do epithelial cells get nutrients?by diffusion or absorption across either the exposed or attached epithelial surface150
15070091183Do epithelial cells have a high capacity to regenerate?yes, cells at exposed surfaces are easily damaged and can die and they must be replaced.151
15070130861What are the epithelium functionsprotection, secretion, sensory detection152
15070136167basement membranea specialized structure of epithelium-found between epithelium and underlying connective tissue153
15070160760intercellular junctionsepithelial cells are strongly bound together by specialized connections in the plasma membranes of their lateral surfaces154
15070184045What are the 4 major types of junctions?tight, adhering, desmosomes, and gap junctions155
15070211872What are the 3 types of epithelial cell shapes?squamous(flat), cuboidal, columnar156
15070235180simple epithelial cellssingle layer of epithelial cells157
15070243483Stratified epithelial cellsmore than one layer of epithelial cells158
15070253463simple squamous epitheliumsingle layer of flat cells with an exposed surface159
15070261219stratified squamous epitheliummultiple layers of flat cells with an exposed surface (ex. skin)160
15070275476ciliated epitheliummoves surface objects in one direction, found on apical surface of many epithelial cells.161
15070299999description of glands-All glands are epithelial cell in origin -perform a secretory function/release stuff162
15070321652endocrine glandsDuctless glands that empty their hormonal products directly into the blood163
15070328653exocrine glandsDucted glands that carry products to the epithelial surface164
15070367542duct glands-Simple:single un-branced duct -compound:branched ducts165
15070399054secretory glandstubular:tube like acinar:bulbous166
15070417196merocrinesecrete products from vesicles via exotosis167
15070420873holocrinecell accumulates product then disintegrates168
15070427044apocrineproduct stored in apical part of cell that pinches off169
15070439843connective tissuedesigned to support, protect and bind organs as well as stores fat and transports gases, nutrients, hormones and wastes. (acts as the glue and packing material of the body)170
15070457968functions of connective tissuephysical protection, support and structural framework, binding of structures(muscles), storage(bones), transport(blood), immune protection171
15070477184ground substanceproduced by the CT cells and comprised of proteins and carbohydrates with variable amounts of salt and h20. Can either be viscous(in blood), semisolid(cartilage), or solid (bone)172
15070510814What forms the exracellular matrix?Ground substance plus the extracellular protein fibers173
15070532222How can CT be classified?CT proper, supporting CT, or fluid CT.174
15070550780Connective tissue properloose and dense CT175
15070563145supporting connective tissuecartilage and bone176
15070571402Loose CTcan be distorted without damage, an open framework, the packing material of the body177
15070589197areolar connective tissuesubcutaneous layer under skin178
15070613584adipose connective tissuesubcutaneous and abdominal fat179
15070623388reticular connective tissuelymphoid organs (lymph nodes, bone marrow, and spleen)180
15070630281dense connective tissuedensely packed, cannot be stressed too much without damage181
15070640567What are the three types of dense connective tissue?-Regular-Tendons and ligaments -Irregular-Deep dermis -Elastic-Vocal cords/trachea182
15070657097Cartilagefirm, gel-like matrix, semi-flexible183
15070664579hyaline cartilageMost common type of cartilage; it is found on the ends of long bones, ribs, and nose (weak)184
15070673278Fibrocartilageintervertebral discs, pubic symphysis, cartilage of knee joint (dense, shock absorber)185
15070688849elastic cartilageexternal ear (flexible)186
15070691939bonemore solid than cartilage and provides more support but is also more brittle187
15071985175What are the three types of muscle?smooth, cardiac, skeletal188
15071992941smooth musclewalls of blood vessels, gut and respiratory tree, reproductive tract (involuntary)189
15071998323cardiac musclewalls of the heart (involuntary)190
15072002167skeletal musclemuscles attached to skeleton, majority of muscles in the body (voluntary)191
15072006779contraction of muscleshortening of muscle fiber192
15072028176heat generation of muscleATP breaks down to give off energy in form of work and heat193
15072035431Nervous tissuehas neurons:nerve cells has neuroglia: support cells for the neurons194
15072045226Function of nervous tissuegenerates and transmits electrical signals through body (controls body functions)195
15072059160What is the integument?Skin - the largest organ in the body (7 to 8% body weight)196
15072063420Epedermissuperficial layer of stratified squamous epithelium197
15072069208dermisdeeper layer of areolar and dense irregular connective tissues198
15072074589hypodermis(not part of the skin) lies under dermis, mostly adipose connective tissue (hypo=low)199
15072084666major functions of the integument- protection - vitamin D synthesis and storage of nutrients - temperature maintenance - sensory reception -immune defense - excretion and secretion200
15072102156epidermis-Outermost layer of skin -consists only of epithelial cells -has no blood or nerve supply201
15072123775epidermal strata(from deep to superficial) (before signing get legal counsel)stratum basale, stratum spinosum, stratum granulosum, stratum lucidum(thick skin), stratum corneum (stratum means layer)202
15072157871Stratum basaledeepest layer of epidermis that undergoes mitosis and cell division (one cell layer thick)203
15072183091living keratinocytesproduce keratin, waterproofs skin204
15072187620Melanocytesproduce the pigment melanin that protects against damage of DNA by ultraviolet radiation205
15072377993What can melanin doprevent sun damage to DNA that helps to prevent skin cancer206
15072383793Stratum spinosumSeveral layers thick, daughter cells from the stratum basale -cells of this layer begin to produce keratin207
15072400620stratum granulosum-3-5 layers of flat keratinocytes -cytoplasm fills with keratin filaments -organelles begin to degrade -fully keratinized cells are dead but strong and water-insoluable208
15072423034stratum lucidum-thin translucent region -present only in thick skin such as sole of feet and palms of hands209
15072430938stratum corneumsuperficial layer of epidermis, can get up to 30 layers thick, comprised solely of dead keratinocytes210
15072446409What is skin color determined by?melanin, carotene, hemoglobin211
15072446411Hemoglobinblood pigment; causes light complexions to look pink or blue212
15072452092melaninpigment produced by melanocytes; increases in people exposed to more UV light213
15072460614carotenethe yellow pigment from food that builds up in the skin214
15072466352Epidermal Variation-Between different body regions -Between individuals -In thickness, color, and skin markings215
15072470204nevuslocalized overgrowth of melanocytes (ex. mole)216
15072476132hemangiomaproliferation of blood vessels217
15072480283friction ridgesFolds of epidermis and dermis on fingers, palms, soles, and toes; increase friction for grasping (cause us to leave finger prints)218
15072487794The dermisLies deep to the epidermis(has two connective tissues/areolar:superficial and dense irregular: deeper) Also contains: -blood vessels and glands -arrectores pilorum(muscle; goose bumps -nervous system219
15072516942vasoconstrictionnarrowing blood vessels preserves core body heat220
15072518691vasodilationwidening blood vessels releases body heat, lowing body temperature221
15072527600functions of nerve fibers that are present in the dermis-touch receptors -control blood flow -control grandular secretion222
15072538799The hypodermis (subcutaneous layer)deep to, but not actually part of the integument223
15072547521structures that grow from the epidermisnails, hairs, glands224
15072549886nailsScale like modifications of the stratum corneum225
15072557669nail bedlayer of living epidermis covered by nail body226
15072560011nail matrixthickened growing part of the nail bed227
15072563281haircolumns of keratinocytes growing from follicles deep in dermis or hypodermis228
15072567872What are the three hair types?lanugo, vellus, terminal229
15072570081Lanugo hairembryonic hair230
15072573238vellus hairpeach fuzz231
15072575361terminal haircoarse, long hair of eyebrows, scalp, axillary, and pubic regions232
15072579953hair bulbpool of epithelial cells where the hair originates233
15072581768hair rootportion deep to the skin surface234
15072584559hair shaftportion extending beyond the skin surface235
15072586437hair folliclea small tubular cavity containing the root of a hair236
15072596049sweat glandsmerocrine-mostly water secreted apocrine-mostly proteins and lipids237
15072607524sebaceous glandssecrete sebum (oil) into the hair follicles or directly onto skin surface238
15072613862acneplugged sebaceous ducts239
15072624209Chondroblastsproduce cartilage matrix240
15072626477Chondrocytessurrounded by matrix -live in small spaces called lucunae241
150726377033 major types of cartilagehyaline, elastic, fibrocartilage242
15072637704hyalinemost common type of cartilage, articular/coastal243
15072641774Fibrocartilageintervertebral discs, pubic symphysis, discs of knee joint244
15072646114Elasic cartilageear/epiglottis245
15072648505functions of cartilage-support soft tissues -articular surfaces for joints -provide a model for endochondral bone formation246
15072654847bonesliving organs containing all four tissue types -strengthened by calcification247
15072662495What do bones provide for the body?support, movement, hematopoiesis(red blood cell production), storage (of calcium)248
15072672336long boneslonger than they are wide249
15072672337short bonesnearly equal length and width250
15072674397flat bonesthin, flattened, and usually curved251
15072676181irregular bonesvertebrae and facial bones252
15072681546are ribs considered long bones?No, because it has a long flat structure253
15072685177Diaphysis (shaft)Elongated body of a long bone254
15072688020Epiphysesends of long bone, strengthen joints255
15072695968metaphysesbetween diaphysis and epiphyses; contains epiphyseal growth plate256
15072698829articular cartilage-thin layer of hyaline cartilage covering the epiphysis -reduces friction between articulating bones257
15072706502medullary/marrow cavity-cylindrical space in diaphysis -usually contains yellow bone marrow258
15072711900periosteum-covers external surfaces of bones -acts as anchor for blood vessels and nerves -anchored by perforating fibers259
15072718061Endosteumcovers most internal surfaces of bones260
15072721209OsteoprogenitorsStem cells that differentiate into osteoblasts; important in fracture repair261
15072727797Osteoblastsforms bone matrix262
15072729961osteocytesreside in lacunae;maintain matrix and communicate with osteoblasts to cause further deposit of bone matrix263
15072735522osteoclastscells that dissolve bone264
15072740471bone matrixnonliving, structural part of bone265
15072746915compact bonesolid and relitively dense, external surfaces of long and flat bones266
15072753069spongy boneopen lattice of narrow places:trabeculae267
15072757892osteonbasic structural and functional unit of mature compact bone268
15072772401central canalcarries blood vessels and nerves269
15072775108perforating canalsperpendicular connections to central canal with blood vessels and nerves270
15072780409canaliculi canalsbetween lacunae allowing metabolic interactions between osteocytes271
15072783865Lamellae (concentric)rings of bone around central canal272
15072785684circumferential lamellaealong endosteum and periosteum273
15072789469interstitial lamellae"leftover" pieces of old osteons274
15072792779ossificationthe formation and development of bone275
15072795370intramembranous ossificationDevelops from mesenchyme Produces flat bones of the skull, some facial bones, mandible, and central portion of clavicle276
15072799809endochondral ossification-Begins with hyaline cartilage model -Produces majority of bones in the body277
15072807901The epiphyseal platea layer of hyaline cartilage at the boundary of the epiphysis and diaphysis278
15072821188intersitial growthgrowth in length279
15072822545appositional growthgrowth in diameter280
15072826831appositional growth occurs inperiosteum281
15072835161Athletes who engage in intense exercise on average have a greater or less bone density?greater bone density282
15072843941osteoperosisa condition characterized by a decrease in bone density, producing porous and fragile bones283
15072851638axial skeletonskull, vertebral column, thoracic cage (80 bones)284
15072857187appendicular skeletonshoulder and hip bones and those of the upper and lower extremities (126 bones)285
15072865834The skull has how many bones?8 cranial bones with direct contact with the brain and 14 facial bones with no brain contact286
15072880554what are the 3 fossa in the craniumanterior, middle and posterior cranial fossa287
15072884366nasal complexBones and cartilages forming the nasal cavities and paranasal sinuses288
15072890269paranasal sinusesair-filled cavities lined with mucous membrane, located in the bones of the skull289
15072892685major types of paranasal sinusesfrontal, ethmoid, sphenoid, and maxillary290
15072897264nasal septumseparates the left and right airways in the nose, dividing the two nostrils291
15072900790deviated septuma common physical disorder where the nasal septum is displaced; deviated from the center line292
15072906397palateforms the roof of the oral cavity and acts as a barrier to separate it from the nasal cavity293
15072911340The hard palate is formed bypalatine process of maxillae and horizontal plates of palatine bones294
15072913786cleft palatea congenital split in the roof of the mouth295
15072917155vertebral columnA series of 26 irregularly shaped bones called vertebrae that houses the spinal cord.296
15081287506How many cervical vertebrae are there?7 (C1-C7)297
15081287509How many thoracic vertebrae are there?12 (T1-T12)298
15081320250How many lumbar vertebrae are there?5 (L1-L5)299
15081339523What two inferior bones are fusions of several vertebrae?sacrum, coccyx300
15081364866What are the four adult vertebral curvatures?Cervical-curves anteriorly thoracic-curves posteriorly lumbar-curves anteriorly sacral-curves posteriorly301
15081448368Abnormalities of the normal spinal curvature may be caused by..poor posture, disease, congenital defects(born with)302
15081457707kyphosis-abnormalities in spinal curvature -a thoracic curving of the spine that causes a bowing or rounding of the back which leads to a hunchback or slouching posture -can occur any age, rare at birth303
15081467372lordosis-abnormalities in spinal curvature -observed as a protrusion of the abdomen and buttock;often called "swayback"304
15081516218Lordosis can be caused by-degenerative diseases of the spine -excess abdominal fat -pregnancy305
15081532894scoliosis-an abnormal lateral curvature -most common curvature disorder -often occurs in the thoracic region306
15081571657Typical vertebraC3-C7, T1-T12, L1-L5307
15081578476AtypicalC1(atlas), C2(Axis), sacrum, coccyx308
15081624635anulus fibrosusouter ring of fibrocartilage309
15081638638Nucleus pulposesthe inner gelatinous material that gives discs elasticity and compressibility310
15081682060How much length do discs make up of the vertebral column and what do they do?1/4, and they act as shock absorbers311
15081712110herniated diskoccurs when the gelatinous nucleus pulposus protrudes in or through he anulus fibrosus312
15081770823Appendicular skeleton (126 bones) is comprised of 4 major groups of bonesperctoral girdle (4 bones) upper limbs (60 bones) pelvic girdle (2 bones) lower limbs (60 bones)313
15081801882bracial regionupper limb/arm: -area between shoulder and elbow -consists of only the humerous314
15081851319Antebrachial-area between elbow and wrist -consists of only the radius and ulna315
15081886333interosseous membranedense regular connective tissue that maintains distance between radius and ulna and provides pivot point for rotation316
15081914960Supinationin anatomic position, bones of the forearm are said to be in supination317
15081935421pronationwith palm facing posteriorly, radius crosses over the ulna, this position is called pronation318
15081964201interosseous membraneflexible membrane connecting radius and ulna & tibia and fibula319
15081969990femurlongest, strongest, and heaviest bone in the body320
15081984359lower limb-legknown as the crural region321
15082032656Why do feet not rest flat on the floor?to prevent pinching of muscles, nerves, and blood vessels322
15082041937medial archfrom heel to hallux; highest arch323
15082051899lateral archfrom heel to fifth toe; lowest arch324
15082063894transverse archperpendicular to other arches; along distal row of tarsals325
15082074600Polydactylyextra fingers or toes326
15082081796petrodactylcondition of absent digits327
15082097788syndactylywebbed fingers or toes328
15082109657meromelia archpartial (meromelia) or complete absense (amelia) of limbs329
15082117414Phocomeliashort, poorly formed limbs that resemble a flipper330
15082128357ThalidomideA mild tranquilizer that, taken early in pregnancy, can produce a variety of malformations of the limbs, eyes, ears, and heart.331

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