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CNS SnowAP Flashcards

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5329698167neurologyWhat is the study of the nervous system?0
5329698168neurosurgeryWhat is surgery involving the nervous system?1
5329698169neurophysiologyWhat is the study of the biological function of the nervous system?2
5329698170neuroanatomyWhat is the study of the structure of the nervous system?3
5329698171central nervous system (CNS)Based on anatomical components, what division of the nervous system is made up of the brain and spinal cord?4
5329698172peripheral nervous systemBased on anatomical components, what division of the nervous system is made up of cranial nerves, spinal nerves, and ganglia?5
5329698173cranial nervesWhat are nerves that extend from the brain?6
5329698174spinal nervesWhat are nerves that extend from the spinal cord?7
5329698175gangliaWhat are clusters of neuron cell bodies outside of the CNS?8
5329698176Collecting information. Processing and evaluating information. Responding to information.What are the three general functions of the CNS and PNS?9
5329698177sensory divisionWhat division of the nervous system is responsible for receiving sensory information and transmitting it to the CNS?10
5329698178somatic sensoryWhat subdivision of the sensory division of the nervous system deals with general senses of the body wall?11
5329698179somatic sensoryWhat subdivision of the sensory division of the nervous system deals with general somatic senses (touch, pain, pressure, vibration, temperature, and proprioception)?12
5329698180visceral sensoryWhat subdivision of the sensory division of the nervous system deals with stretch and temperature from blood vessels and internal organs?13
5329698181motor divisionWhat functional division of the nervous system transmits impulses from the CNS to muscles and glands?14
5329698182Somatic motor system. Visceral motor system (autonomic nervous system).List the two subdivisions of the motor division.15
5329698183somatic motor systemWhat subdivision of the motor division of the nervous system controls skeletal muscles?16
5329698184visceral motor system (autonomic nervous system)What subdivision of the motor division of the nervous system is involuntary and controls cardiac and smooth muscle and glands?17
5329698186"neurons — initiate and transmit impulses glial cells — support and protect the neurons"List and define the two cell types of the nervous system.18
5329698187neuronWhat type of cell initiates and transmits impulses within the nervous system?19
5329698188glial cellsWhat type of cells support and protect neurons?20
5329698189cell bodyWhat part of a neuron holds the nucleus and is the control center of the cell?21
5329698190dendritesWhat part of a neuron conducts impulses toward the cell body?22
5329698191axonWhat part of a neuron conducts impulses away from the cell body?23
5329698192a nerveWhat is a cablelike bundle of parallel axons?24
5329698193synapseWhat is a functional connection for the transmission of impulses from a neuron to a second cell?25
53296981943rd weekWhen does the nervous system begin to develop?26
5329698195ectodermFrom which germ layer does the nervous system develop?27
5329698196neural plateWhat is the thickened portion of tissue over the notochord called?28
5329698197neuralationWhat is the process in which structures of the nervous system are formed?29
5329698198neural grooveDuring the development of the nervous system, what longitudinal indentation forms from the neural plate?30
5329698199neural tubeDuring the development of the nervous system, what hollow structure is formed as the neural folds meet?31
53296982001.35-1.4 kg (~3 lbs)What is the average range of weight of the human brain?32
53296982011200 - 1500 ccWhat is the average volume of the human brain?33
5329698202100 billionHow many neurons make up the CNS?34
5329698203gray matterWhat type of tissue within the CNS houses motor neuron and interneuron cell bodies, dendrites, telodendria, and unmyelinated axons?35
5329698204white matterWhat type of tissue within the CNS houses myelinated axons?36
5329698205cerebral cortexWhat is the superficial sheet of gray matter covering most of the adult brain?37
5329698206cerebral nucleiWithin the interior of the brain what are clusters of gray matter?38
5329698207meningesCollectively what are the three connective tissue layers that separate the soft tissue of the brain from the bones of the cranium, enclose and protect blood vessels that supply the brain, and contain and circulate cerebrospinal fluid?39
5329698208dura materSurrounding the CNS, what is the external, tough, dense irregular connective tissue layer composed of two fibrous layers?40
5329698210"periosteal layer menigeal layer"What are the two layers of the dura mater?41
5329698211dural venous sinusesWhat spaces are formed when the two layers of the dura mater separate?42
5329698212epidural spaceWhat potential space lies between the dura and the cranium?43
5329698213subdural spaceWhat potential space lies between the dura and the arachnoid?44
5329698214arachnoid (arachnoid mater or arachnoid membrane)Which meninx is deep to and in contact with the dura?45
5329698215subarachnoid spaceWhat real space lies just deep to the arachnoid?46
5329698216pia materWhat meninx is the deepest and, unlike that others, follows the contours of the brain?47
5329698217cranial dural septaCollectively what are the four extensions of the dura mater that extend as flat partitions into the cranial cavity to provide additional stabilization and support for the brain?48
5329698218ventriclesWhat are the cavities within the brain?49
5329698219cerebrospinal fluid (CSF)What is the clear, colorless liquid that circulates in the ventricles and subarachnoid space of the brain?50
5329698220buoyancy, protection, environmental stabilityList the functions of cerebrospinal fluid.51
5329698221choroid plexusesWithin the ventricles of the brain what structures form CSF?52
5329698222500 mlAbout how much CSF is formed every day?53
5329698223100-160 mlAbout how much CSF is within and around the CNS at any one time?54
5329698224arachnoid granulations (villi)What structures reabsorb CSF?55
5329698225Choroid plexus makes it in each ventricle (V). Lateral ventricles through interventricular foramina to the 3rd V. To the cerebral aqueduct to the 4th V. Into the subarachnoid space from the 4th V or into the spinal cord's central canal. Subarachnoid space. Reabsorbed into the blood through arachnoid granulations in the venous sinuses.Outline the flow of CSF.56
5329698226Regulates what substances enter the interstitial fluid of the brain.What is the function of the blood-brain barrier?57
5329698227Conscious thought processes. Origin of all complex intellectual functionsWhat are the functions of the cerebrum?58
5329698228cerebral cortexWhat is the outer layer of gray matter of the cerebrum?59
5329698229gyri (singular = gyrus)What are the elevated ridges on the surface of the cerebrum?60
5329698230sulci (singular = sulcus)What are the shallow depressions on the surface of the cerebrum?61
5329698231fissuresWhat are the deep grooves of the cerebrum?62
5329698232cerebral hemispheresWhat are the two halves of the cerebrum?63
5329698233longitudinal fissureWhat deep groove separates the two halves of the cerebrum?64
5329698234corpus callosumWhat large tract of white matter connects the two halves of the cerebrum and is the main method of communication between them?65
53296982351) It is usually difficult to assign a precise function to a specific region. 2) Usually the hemispheres receive information from and send motor commands to the opposite side of the body. 3) The hemispheres display functional differences (lateralization).What are three important points with respect to the cerebral hemispheres?66
53296982365How many lobes lie within cerebral hemisphere?67
5329698237frontalWhat is the most anterior of the cerebral lobes?68
5329698238central sulcus, lateral sulcusWhat are the anatomical borders of the most anterior of the cerebral lobes?69
5329698239precentral gyrusWhat important anatomical feature of the frontal lobe lies immediately anterior to the central sulcus and is responsible for primary motor function?70
5329698240control voluntary skeletal muscle activityWhat is the function of the primary motor cortex?71
5329698241motor speech area (Broca's area)What portion of the frontal lobe is involved with control of muscles involved with speech, is located on the inferolateral portion of the lobe, and is usually on the left side?72
5329698242inferolateral portion of the left frontal lobeThe motor speech area is located within what region of the brain?73
5329698243Regulating patterns of breathing and controlling the muscular movements necessary for vocalization.What is the function of the motor speech area?74
5329698244"Voluntary motor functions. Concentration. Verbal communication. Decision making. Planning. Personality.List the primary functions of the frontal lobe of the cerebrum.75
5329698246parietal lobeWhat lobe of the cerebrum forms the superoposterior part of each cerebral hemisphere?76
5329698247postcentral gyrusWhat important anatomical feature lies immediately posterior to the central sulcus?77
5329698248parietal lobeWhat lobe of the cerebrum deals with general sensory functions such as evaluating the shape and texture of objects being touched?78
5329698249postcentral gyrus of the parietal lobesWhere does the primary somatosensory cortex lie?79
5329698250Receiving information on touch, pressure, pain, and temperature.What is the function of the primary somatosensory cortex?80
5329698251temporal lobeWhat lobe of the cerebrum lies inferior to the lateral sulcus?81
5329698252temporal lobeWhat cerebral lobe functions in smell, hearing, interpreting speech and language?82
5329698253"temporal lobeWhere does the primary auditory cortex occur?83
5329698255Receive and process auditory inforamationWhat is the function of the primary auditory cortex?84
5329698256temporal lobeWhere does the olfactory cortex occur?85
5329698257Provide conscious awareness of smell.What is the function of the olfactory cortex?86
5329698258occipital lobeWhat lobe of the cerebrum forms the most posterior region of each cerebral hemisphere?87
5329698259occipital lobeWhere does the primary visual cortex occur?88
5329698260visual processing & visual memoriesWhat are the functions of the occipital lobe of the cerebrum?89
5329698261primary visual cortex of the occipital lobeWhere is vision perceived?90
5329698262Receive and process visual information.What is the function of the primary visual cortex?91
5329698263insulaWhat small, deep lobe of each cerebral hemisphere lies deep to the lateral sulcus?92
5329698264memory and interpretation of tasteWhat are the apparent functions of the small, deep lobe of each cerebral hemisphere that lies deep to the lateral sulcus?93
5329698265insulaWhere does the gustatory cortex occur?94
5329698266Processing of taste information.What is the function of the gustatory cortex?95
5329698267Process and interpret incoming data or coordinate a motor response.What is the function of association areas within the cerebrum?96
5329698268tractsWhat are bundles of myelinated axons that lie deep to the cerebral cortex?97
5329698269cerebral nucleiWhat are paired, irregular masses of gray matter buried deep within the central white matter in the basal region of the cerebral hemispheres inferior to the floor of the lateral ventricle?98
5329698270"diencephalonWhat part of the brain is composed of the epithalamus, right and left thalami, and the hypothalamus?99
5329698272epithalamusWhat structure partially forms the posterior roof of the diencephalons and covers the third ventricle?100
5329698273thalamusWhat are the paired structures on either side of the third ventricle?101
5329698274thalamus"What region of the brain has the following functions? -To act as the principal and final relay point for sensory information that will be processed and projected to the primary sensory cortex. -To filter sensory information so that only a small portion of it goes to the cerebrum. -To inform the cerebrum as to where sensory information is coming from."102
5329698276hypothalamusWhat part of the brain lies inferior to the thalamus?103
5329698277infundibulumWhat structure attaches the hypothalamus to the pituitary gland?104
5329698278hypothalamus"What region of the brain has the following funtions? Master control of the ANS Master control of the endocrine system Regulation of body temperature Control of emotional behavior Control of food intake Control of water intake Regulation of sleep-wake (circadian) rhythms"105
5329698285brainstemThe midbrain, pons, and medulla oblongata together form what part of the brain?106
5329698286midbrainWhat is a synonym for mesencephalon?107
5329698287cerebral pedunclesWithin the midbrain what are the motor tracts located on the anterolateral surfaces?108
5329698288corpora quadrigeminaWithin the midbrain what is the "body of four twins"?109
5329698289superior colliculiWhat are the "visual reflex centers" of the midbrain?110
5329698290inferior colliculiWhat are the "auditory reflex centers" of the midbrain?111
5329698291ponsWhat is the bulging region on the anterior part of the brainstem?112
5329698292medulla oblongataWhat is the most inferior part of the brainstem?113
5329698293cerebellumWhat is the second largest part of the brain?114
5329698294"cerebellar hemispheresWhat are the right and left halves of the cerebellum?115
5329698296vermisWhat wormlike structure of the cerebellum lies between the two cerebellar hemispheres?116
5329698297CerebellumWhat part of the brain coordinates and "fine-tunes" skeletal muscle movement and maintains equilibrium and posture?117
5329698298cerebellar pedunclesWhat thick tracts connect the cerebellum to the brainstem?118

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