Review questions Flashcards
(32 cards)
The falx cerebri is an extension of
dura mater
What layer of the meninges is filled with CSF
arachnoid mater
Where is the BBB located
in the walls of the blood vessels of the CNS
What is a function of the BBB
maintain constant environment
tightly packed endothelial cells make up the
BBB
The ventricles are filled with
CSF
Where is CSF produced
choroid plexus
how is the CSF absorbed into the bloodstream
arachnoid granulations
a blockage in the ventricular system can cause
hydrocephalus
Motor neuron
efferent
sensory neuron
afferent
T/F interneurons connect neurons
True
nerve cells communicate through
impulses
a neuron is polarized when it is
at rest
what channels open in response to the presence of a neurotransmitter
liangated ion channels
excitatory postsynaptic potential creates
depolarization
T/F glutamate opens iontropic receptors
true
The final step in creating an action potential is
repolarization
what is reduced transmission velocity and dissipation of the action potential
active episode
ectoderm contains
skin, nervous system
blood supply to the brain comes from the
aorta
T/F veins bring oxygenated blood from the heart to the brain
false
how much of the bodys oxygen does the brain consume
20
the aorta distributed oxygenated blood into the
subclavian arteries
