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42 Cards in this Set

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