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13466593744Simple EpitheliumSingle layer of cells that function in diffusion, osmosis, filtration, secretion, or absorption0
13466593745Simple squamous epitheliumFunction: Allows passage of materials by diffusion and filtration in sites where protection is not important; secretes lubricating substances Location: Kidney glomeruli, air sacs of lungs, lining of heart, blood vessels, and lymphatic vessels; lining of ventral body cavity(serosae)1
13466594216Simple Cuboidal EpitheliumFunction: secretion and absorption Location: Kidney tubules; ducts and secretory portions of small glands, ovary surface.2
13466594741Simple Columnar EpitheliumFunction: Absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus (or reproductive cells) by ciliated action. Location: digestive tract gallbladder and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus.3
13466598008Pseudostradifiedlooks stradified glands and ducts moves mucus4
13466610069connective tissuemainly to bind and support other tissues, having a sparse population of cells scattered through an extracellular matrix. Enclosing and separating tissues Connecting tissues Supporting and moving body parts Cushioning and insulating Transporting Protecting5
13466611229Muscular TissueContracts and moves the various parts of the body. contracts volunteer or involuntarily6
13466611237Nervous Tissuedendrites cell body axon Brain spinal cord ganglia A body tissue that carries electrical messages back and forth between the brain and every other part of the body.7
13466617619epithelial tissueSingle layer(s) of flat cells A body tissue that covers the surfaces of the body, inside and out Protects underlying structures Acts as a barrier Permitting the passage of substances Secreting substances Absorbing substances8
13466638940MicrofilamentsLong, thin fibers that function in the movement and support of the cell9
13466640621Intermediate filamentsPerhaps the most important function of intermediate filaments is to provide mechanical support for the plasma membrane where it comes into contact with other cells or with the extracellular matrix.10
13466641564MicrotubulesMicrotubules are hollow, fibrous shafts whose main function is to help support and give shape to the cell. They also serve a transportation function, as they are the routes upon which organelles move through the cell.11
13466642872Cytosolthe aqueous component of the cytoplasm of a cell, within which various organelles and particles are suspended.12
13466643366NucleusA part of the cell containing DNA and RNA and responsible for growth and reproduction13
13466643974Golgi complexa cell organelle that helps make and package materials to be transported out of the cell14
13466643975Endoplasmic Reticuluma network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.15
13466645070MitochondriaAn organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.16
13466645071PeroxisomesThey are small vesicles found around the cell. They have a single membrane that contains digestive enzymes for breaking down toxic materials in the cell.17
13466646556Lysosomesorganelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.18
13466647266Glycogena substance deposited in bodily tissues as a store of carbohydrates. polysaccharide, which forms glucose on hydrolysis.19
13466650939Glucagoncauses the liver to convert stored glycogen into glucose, which is released into the bloodstream A protein hormone secreted by pancreatic endocrine cells that raises blood glucose levels; an antagonistic hormone to insulin.20
13466652550Diabetes 1A chronic condition in which the pancreas produces little or no insulin.21
13466654027Diabetes 2Immune system destroying Alpha cells in the Pancreas22
13466654636InsulinInsulin is a hormone made by the pancreas that allows your body to use sugar (glucose) from carbohydrates in the food that you eat for energy or to store glucose for future use.Insulin helps keeps your blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).23
13466655652Cardiac Musclecylindrical single nucli, connected by intercalated disks Involuntary muscle tissue found only in the heart.24
13466657415Smooth Muscletapered non striated single nuclus muscle tissue in which the contractile fibrils are not highly ordered, occurring in the gut and other internal organs and not under voluntary control.25
13466659296Skeletal MuscleLong large cylindrical strands striated multi nucli A muscle that is attached to the bones of the skeleton and provides the force that moves the bones.26
13466660738Muscle Structure-made up of fibers, covered with fascia and attach to bone with tendons. a. Muscle fibers-held together with connective tissue and enclosed b. Fascia-connective tissue that covers, supports and separates muscles or groups of muscles. c. tendons-attach muscle to bone27
13466670254synovial jointA synovial joint, also known as diarthrosis, joins bones with a fibrous joint capsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of a synovial cavity, and surrounds the bones' articulating surfaces.28
13466672391Joint TypesHinge Joints Bend Your Limbs Ball and Socket Joints Provide Rotation Condyloid Joints Twist and Bend Saddle Joints Have a Unique Shape Gliding Joints Allow Smooth Motion.29
13466674577axial skeletonPortion of the skeletal system that consists of the skull, rib cage, and vertebral column30
13466675996appendicular skeletonBones of the limbs and limb girdles that are attached to the axial skeleton31
13466686870collagen fibersBind bones and other tissues to each other tendon, ligament, skin, cornea, cartilage, bone, blood vessels, gut, and intervertebral disc. Alpha polypeptide chains32
13466687568Elastic FibersAllow organs like arteries and lungs to recoil extracellular matrix Elastic microfibril and elastin33
13466688525Reticular FibersForm a scaffolding for other cells liver, bone marrow, and lymphatic organs Type III collagen34
13466693119loose connective tissueareolar, adipose, reticular35
13466697674Areolar TissueBinds skin to underlying organs36
13466698719adipose tissueTissue that stores fat.37
13466699271reticular tissueForms internal supporting framework of soft organs such as the spleen38
13466728209muscle contraction stepsAt rest, troponin blocks tropomyosin binding site on actin When Ca+ is available, it binds to troponin on actin, and myosin binding site becomes available Myosin, containing ADP + P, binds its head to actin Myosin head moves and pulls actin (power stroke), ADP released *Binding of new ATP needed to release actin from myosin head ATP hydrolysis by myosin occurs and cycle repeats39
13466731205vertebrae structurebody- weight bearing inter vertebral disks-separate verterbral bodies vertebral arch- surrounds the verterbral foramen (inside is the vertebral canal) two pedicles two laminae spinous process40
13466748640Vertebrae PatholgiesScoliosis- abnormal lateral curvature of the spine Stenosis- narrowing of the spinal canal with compression of nerve roots Spina bifida- spinal canal fails to close completely around the spinal cord to protect it Tumors- 1. Intramedullary - within spinal cord 2. Intradural - within the dura but outside the spinal cord 3. Extradural - outside the spinal cord41
13466752150Spinal Tumors3 types - 1. Intramedullary - within spinal cord 2. Intradural - within the dura but outside the spinal cord 3. Extradural - outside the spinal cord42
13466757040Bone RepairHematoma formed Callus Formed Internally and Externally Callus Ossification, woven bone replaces internal and external calluses Compact bone replaces woven bone and internal calluses is removed restoring the cavity43
13466757886bone remodelingResorption phase. Once differentiated, osteoclasts polarize, adhere to the bone surface and begin to dissolve bone. This function requires two steps: i) acidification of the bone matrix to dissolve the inorganic component, and ii) release of lysosomial enzymes, Resorption phase. Once differentiated, osteoclasts polarize, adhere to the bone surface and begin to dissolve bone. This function requires two steps: i) acidification of the bone matrix to dissolve the inorganic component, and ii) release of lysosomial enzymes, recruitment of the osteoblasts in the reabsorbed area. Once recruited, osteoblasts produce the new bone matrix, initially not calcified and then they promote its mineralization, thus completing the bone remodelling process.44
13466775101Endochondral ossificationis formed using cartilage models. The cartilage models have the general shape of the mature bone. During Endochondral ossification cartilage cells called chondrocytes increase in number, enlarge and die. This cartilage matrix becomes calcified. Blood vessels in the outer surface cause cells to become osteoblasts. Osteoblasts then invade the calcified cartilage matrix and form a bone trabeculae.45
13466776934intramembranous ossificationosteoblasts produce bone in connective tissue membranes. Mainly in the skull. Osteoblasts line up on the surface of connective tissue fibers and deposit bone matrix to form trabeculae radiating out from ossification centers.46
13466779241Compact BoneCompact bone is mostly solid matrix and cells. Outer borders of long bones and thinner surfaces of bones. Blood vessels form central canals.47
13466780329Spongy BoneSpongy bone consists of a lacy network of bone with many small marrow filled spaces. Center of most long bones. Adds strength without weight, no blood vessels.48
13466780940ossificationOsteocyte. Osteocyte, a cell that lies within the substance of fully formed bone. It occupies a small chamber called a lacuna, which is contained in the calcified matrix of bone. Osteocytes derive from osteoblasts, or bone-forming cells, and are essentially osteoblasts surrounded by the products they secreted.49
13466785923Skeletal System structure and functionSupport- Ridgid bone supports weight Protection- Skull and rib cage protect contents Movement- Muscles attached to bones allow for movement Storage- Stored minerals can be released if needed, fats can provide energy Blood Cell Production- Cavities filled with RBM produce cells and platelets50
13466788978homeostasisA tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level51
13466789694Heart Blood FlowSuperior VC RA Tricuspid RV Pulmonary Valve Pulmonary Artery Lungs Pulmonary Veins LA Mitral Valve LV Aortic Valve Aorta52
13466790989Blood VesselsThe main function of blood vessels is to carry blood through the body. The blood carries oxygen, nutrients, and wastes that need to move around the body. There are three kinds of blood vessels: arteries, veins, and capillaries. The arteries carry blood away from the heart and transport it to the rest of the body.53
13466792395Blood composition55% plasma, 45% red blood cells, white blood cells, platelets54
13466794417Blood Functionssupplying oxygen to cells and tissues. providing essential nutrients to cells, such as amino acids, fatty acids, and glucose. removing waste materials, such as carbon dioxide, urea, and lactic acid. protecting the body from infection and foreign bodies through the white blood cells55
13466800439Blood ClottingInactive clotting factors in plasma are activated by exposure to connective tissue or chemicals released by tissues. Activated clotting factors form Prothrombinase Prothrombinase converts Prothrombin to Thrombin Thrombin convers Fibrinogen to Fibrin56
13466847952Baroreceptorsstretch-sensitive receptors located in the aortic arch and carotid bodies, send messages to the medulla oblongata57
13466852599ChemoreceptorsContained in the Medulla oblongata detects changse in the pH and CO2 levels and activates SNS58
13466854989adaptive immunitythe ability to recognize and remember specific antigens and mount an attack on them59
13466857953inate immunitygenetic / exists in a person without prior contact with an antigen60
13466861052functions of the urinary systemexcretion, elimination, homeostatic regulation61
13466863195renin-angiotensin-aldosterone system-decreased blood pressure causes the juxtaglomerular cells of kidneys to secrete renin which converts angiotensinogen (inactive) to angiotensin I (active) which is then converted into angiotensin II by angiotensin-converting enzyme (ACE) -Angiotensin II stimulates the adrenal cortex to secrete aldosterone - leads to absorption of Na and increased blood pressure -once blood pressure is restored, there is a decreased drive to stimulate renin release62
13466863549ADHADH converts to AVP has two primary functions. First, it increases the amount of solute-free water reabsorbed back into the circulation from the filtrate in the kidney tubules of the nephrons. Second, AVP constricts arterioles, which increases peripheral vascular resistance and raises arterial blood pressure.63
13466883087lymphatic systemFluid Balance- reduces edema Lipid Absorption- passes lipids to venous circulation Defense- Nodes filters pathogens from blood and lymph64
13466897311Functions of the respiratory system-gas exchange -thermoregulation -prevents invaders from gaining access to blood stream -controls blood pH by controlling CO2 concentrations65
13466898953Bohr effecta decrease in the amount of oxygen associated with hemoglobin and other respiratory compounds in response to a lowered blood pH resulting from an increased concentration of carbon dioxide in the blood.66
13466905395function of nervous systemsensory input, integration, motor output67
13466905831Action Potentiala neural impulse; a brief electrical charge that travels down an axon68
13466906301gate pain control theorytheory that the spinal cord contains a neurological "gate" that blocks pain signals or allows them to pass on to the brain69
13466928997Mechanoreceptorsrespond to touch, pressure, vibration, stretch, and itch70
13466930534Chemoreceptorsrespond to chemicals such as odor71
13466931051Photoreceptorsrespond to light72
13466931441Thermoreceptorsrespond to changes in temperature73
13466931844NorciceptorsRespond to pain74
13466932886rhodopsinExposure to light activates rhodopsin, rhodopsin is split by light into retinal and opsin, eventually resulting in an action potential75
13466945357functions of the endocrine systemMetabolism + Tissue maturation Ion regulation Immune system regulation Water balance Control of blood glucose Control of reproductive functions Uterine contractions + milk release76
13466949829lipid soluble hormones-steroid and thyroid hormones -act on intracellular receptors that directly activate genes -can enter cell77
13466950625water soluble hormonesbind to receptors on the surface of the cell78
13466951219hormoneChemical messengers, mostly those manufactured by the endocrine glands, that are produced in one tissue and affect another79
13466951960Receptor sitelocation that uniquely recognizes a neurotransmitter80
13466957177anterior pituitary hormonesGH, TSH, ACTH, FSH, LH, PRL81
13466959261posterior pituitary hormonesADH and oxytocin82
13466968924Growth Hormonehormone secreted by anterior pituitary gland that stimulates growth of bones Targets most tissue83
13466974164Thyroid Stimulating Hormone (TSH)stimulates thyroid gland to secrete thyroid hormones Thyroxine and Triiodothyronine84
13466977673Thyroxine and TriiodothyronineMajor hormones produced by the thyroid: stimulate metabolism, growth, and development85
13466978028ACTH (adrenocorticotropic hormone)stimulates secretion of hormones by adrenal cortex86
13466979518Glucocorticoidsraises blood sugar levels, fat and protien breakdown Tissues87
13466980839LH (luteinizing hormone)a hormone that causes the secretion of sex hormones by the testes and ovaries88
13466982409Testosteronesperm cell production89
13466983118Estrogens and progesterone (together)regulate the menstrual cycle and promote breast development90
13466984088FSH (follicle stimulating hormone)stimulates secretion of ovarian sex hormones, development of ovarian follicles, and sperm production91
13466984889Prolactin (PRL)secreted by the anterior lobe of the pituitary gland; promotes milk secretion92
13466985346antidiuretic hormone (ADH)Conserves water constricts blood vessels Kidney93
13466986694Oxytocin (OT)Increases the contractions of the uterus during birth and promotes the release of breast milk Uterus94
13466987046CalcitoninLowers blood calcium levels Bone95
13466987800parathyroid hormoneincreases blood calcium levels Bone Kidney96
13466988898Epi NorEpithe two principal hormones secreted by the adrenal medulla Heart and Vessels97
13466989648MineralocorticoidsPromote reabsorption of Na+ and excretion of K+ in kidneys98
13466992239adrenal androgenshormones produced by the adrenal glands that program various aspects of puberty, such as growth of body hair, skin changes, and sexual desire99
13466992599Thymosinregulates immune response Immune tissues100
13466993593MelatoninInhibits reproduction Hypothalamus101
13466996884stress responseSNS prepares body for physical activity, shunts blood, raises BP and HR, Epi release SNS response releases CRH which causes release of ACTH which releases glococorticoids and cortisol Cortisol causes lipid and protien breakdown, increasing BGL and anti inflammatory effects102

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