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Definition
| prevents brain cells from being damaged by toxins circulating in the bloodstream |
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Term
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Definition
| three protective tissue layers that extend down the brainstem & spinal cord & surround/support the brain within the cranial cavity |
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Definition
| the outermost layer of the meninges; thick & tough |
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Definition
| the middle layer of the meninges; spiderlike processes (arachnoid trabeculae) which extend from it toward the third layer |
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Definition
| the third layer of the meninges; a delicate layer of cells that envelopes subarachnoid vessels & apposes the basement membrane on the outer glial surface of the brain |
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Definition
| places where the subarachnoid space enlarges to form significant collections of cerebrospinal fluid |
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Definition
| fluid that fills the cerebral ventricles in the core of the forebrain & brainstem |
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Definition
| modified vascular structure which produces CSF; present in each of the ventricles |
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Definition
| largest of the ventricles; there is one within each of the cerebral hemispheres |
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Definition
| medial surface of the lateral ventricles; a membranous tissue sheet that forms part of the midline sagittal surface of the cerebral hemispheres |
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Term
| interventricular foramina/foramina of Monro |
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Definition
| small openings through which CSF flows from the lateral ventricles |
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Definition
| a large space in the dorsal pons & medulla |
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Definition
| obstruction of CSF flow that leads to an excess of CSF in the intracranial cavity |
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Term
| horizontal sections/axial sections |
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Definition
| parallel to the rostral-caudal axis of the brain |
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Term
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Definition
| sections in the brain taken in the plane dividing the two hemispheres |
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Definition
| section at the midline of the plane dividing the two hemispheres |
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Definition
| section that is more lateral but still part of the sagittal section |
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Definition
| sections in the plane of the face |
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Term
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Definition
| fluid-filled spaces that run through or between the subdivisions of the central nervous system |
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Term
| what makes up the brainstem? |
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Definition
| medulla, pons, & midbrain |
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Term
| what makes up the forebrain? |
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Definition
| diencephalon & cerebral hemispheres |
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Term
| what encloses the 3rd ventricle? |
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Definition
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Term
| what encloses the lateral ventricle? |
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Definition
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Term
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Definition
| part of the brainstem that sends & receives signals via the cranial nerves |
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Term
| what makes up the hindbrain? |
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Definition
| the brainstem & the cerebellum |
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Term
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Definition
| crests of folded cortical tissue |
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Term
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Definition
| grooves that divide gyri from one another |
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Term
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Definition
1. occipital
2. temporal
3. parietal
4. frontal |
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Term
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Definition
| divides the frontal lobe in the rostral half of the hemisphere from the more caudal parietal lobe |
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Term
| lateral fissure/Sylvian fissure |
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Definition
| divides the temporal lobe inferiorly from the overlying frontal & parietal lobes |
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Definition
| separates the parietal lobe fro the occipital lobe |
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Definition
| peripheral nerves that innervate much of the body & arise from the spinal cord |
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Definition
| where the sensory information carries by the afferent axons of the spinal nerves enters the cord |
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Definition
| where the motor commands carried by the efferent axons leave the spinal cord |
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Term
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Definition
| the spinal cord expansion that corresponds to the arms |
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Definition
| the spinal cord expansion that corresponds to the legs |
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Definition
| the sensory tracts for the head & neck |
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Definition
| part of the brainstem that deals with regulating the level of consciousness |
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Term
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Definition
1. olfactory
2. optic
3. oculomotor
4. trochlear
5. trigeminal
6. abducens
7. facial
8. auditory
9. glossopharyngeal
10. vagus
11. spinal accessory
12. hypoglossal |
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Definition
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Definition
| motor; eye movements, papillary constriction & accommodation, muscles of eyelid |
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Definition
| motor; eye movements (intorsion, downward gaze) |
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Definition
| sensory & motor; somatic sensation from face, mouth, cornea, muscles of mastication |
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Definition
| motor; eye movements (abduction or lateral) |
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Definition
| sensory & motor; controls the muscles of facial expression, taste from anterior tongue, lacrimal & salivary glands |
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Definition
| sensory; hearing, sense of balance |
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Definition
| sensory & motor; sensation from posterior tongue & pharynx, taste from posterior tongue, carotid baroreceptors & chemoreceptors |
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Definition
| sensory & motor; autonomic functions of gut, sensation from larynx & pharynx, muscles of vocal cords, swallowing |
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Definition
| motor; shoulder & neck muscles |
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Definition
| motor; movements of tongue |
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Term
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Definition
| the motor cortex; contains neurons whose axons project to the lower motor neurons in the brainstem & spinal cord; innervate skeletal muscles |
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Definition
| beneath the frontal & temporal lobes; concerned with visceral & autonomic function, including taste |
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Definition
| concerned with somatic sensation |
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Term
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Definition
| bridges the two hemispheres |
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Term
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Definition
| divides the medial surface of the occipital lobe, running at very nearly a right angle from the parieto-occipital sulcus & marking the location of the primary visual cortex |
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Definition
| extends across the medial surface of the front & parietal lobes |
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Definition
| important in the experience & expression of emotion as well as the regulation of visceral motor activity |
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Definition
| devoted to the control of homeostatic & reproductive functions |
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Term
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Definition
| a thin layer of neural tissue that covers the entire cerebrum |
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Term
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Definition
| receives input from the cerebral cortex & participates in the organization and guidance of complex motor functions |
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Term
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Definition
| interconnects the hippocampus & the hypothalamus & the septal region of the basal forebrain |
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