QUESTIONS AND ANSWERS / VERIFIED/GRADED A+/
a diffusion barrier which prevents particles from entering CNS
tissue
keeps the brain and spinal cord separate from regular blood
circulation
formed by blood capillaries due to glial cells astrocytes
maintenance is important to provide a stable chemical
environment for the nervous system
what is the purpose of the blood brain barrier? describe its
maintenance from a cellular level
d
a patient damaged the radial nerve. what action is most likely
limited
a. elbow flexion
b. hip extension
c. wrist flexion
d. wrist extension
the degree to which muscles remain partially contracted while
at rest
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,continuously monitored and maintained by the cerebellum to
keep bones and joints in place
what is muscle tone and how is it maintained
stores throughout cerebral hemispheres
hippocampus acts as memory center to help with memory
storage and retrieval
describe how memories are stored and retrieved in the brain
c
right optic tract is damaged
all sensory info from the left visual field travels together after
the optic chiasm to the right side of the brain
a patient had a CVA in the area indicated by the red X in the
figure below. what time of blindness is the patient most likely
to incur
a. left eye blindness
b. right eye blindness
c. bilateral left visual field blindness
d. bilateral right visual field blindness
1. facial nerve
2. malleus
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, 3. cochlea
4. tympanic membrane
5. incus
match the numbers in the figure below with the correct terms
1. scala vestibuli
2. cochlear duct
3. organ of corti
4. scala tympani
5. cochlear nerve
match the numbers in the figure below with the correct terms
multipolar
the neuron pictured below is best described as
bipolar
the neuron pictured below is best described as
afterpolarization
potassium gates are slow to close so there is an undershoot
of potential
charge drops below -70mV and then returns to -70mV once at
resting state again
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