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42 Cards in this Set
- Front
- Back
what is in the pia mater
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nerves and blood vessels that nourish the cells
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where is the pia mater
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innermost layer it hugs the surface passin gover the gyri and sulci
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the central canal in the spinal cord is filled with what
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csf
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what lines the central canal
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ependymal cells
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white matter is arranged in three pairs of bundles known as what
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columns or funiculi
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name the 3 columns or funiculi
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ventral funiculi, dorsal funiculi, and lateral funiculi
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WHAT ARE ascending tracts
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the tracts that carry sensory info to brain
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what are the tracts that carry motor impulses from brain
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descending tracts
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how does a brain recieve its impulses
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from the contralateral side of the body
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most ascending tracts have the prefix what and what
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prefix- spino and the destination of its fibers
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motor fibers o fthe corticospinal tract begin where and cross over where
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cerebral cortex and cross over the medulla
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what does this result in
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brain issuing motor impulses to opposite side of the brain
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names of the descending tracts consist of what root and what suffix
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root denotes point of origin in the brain and suffix is spinal
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WHAT CONSTITUTES THE BRAIN STEM
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medulla oblongata, pons, midbrain, and diencephalon
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what divides the cerebrum into left and right hemispheres
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longitudinal fissure
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what is the outer layer of the cerebrum called
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cerebral cortex
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what color matter is the cerebral cortex
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gray
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what are gyri
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folds on the brain
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what do gyri do
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more surface area
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what is a sulci
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superficial grooves
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when does a stroke occur
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when there is insufficient amount of blood to a brain region
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what is cerebral hemorrhaging
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vessel bursts cause bleeding in the cerebral cortex
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what is an embolic stroke
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small clots formed on other vasculature result in oxygen deprivation to certain parts of the cerebral cortex
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what is an ischemic stroke
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narrowing or blockage of cerebral vasculature results in oxygen deprivation to a specific part of the cerebral cortex
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what are the 3 components of the diencephalon
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thalamus, hypothalamus, epithalamus
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what part of the brain does voluntary movement
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cerebellum
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function of the cerebellum
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precise motor function, timing and rhythm, perception (3D)
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sensory function of the pons
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hearing, equilibrium, taste, facial expressions
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motor function of pons
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chewing, swallowing, pee, saliva and tears
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what does the reticular formation in pons also do
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sleep, respiration, posture
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function substantia nigra
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blocks unwanted movement. the degenerative of this results in parkinsons
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what passes through the medulla
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fibers 9ascen. and descend.)
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what is the function of the thalamus
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relay station,
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what 3 centers are located in the medulla
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cardiac, vasomotor, and respitory
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what are the functions of the medulla
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respitory rhythm, vasodilation and constriction, regulates heart beat
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what is the major control center of the ans and endocrine system
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hypothalamus
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describe relationship between pituitary and hypothalamus
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hypothalamus secretes hormones that control pituitary
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acting through the pituitary what does it regulate
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growth, metabolism, stress, reproductions
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function of the frontal lobe
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voluntary muscle actions, motivation, foresight planning memory, mood, emotion social judgement
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parietal lobe
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recieve and inputs the general senses
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occipital
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visual center
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temporal
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hearing, smell, learning, memory
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