Erins review Flashcards
efferent nerve fibers may be described as what?
motor nerve fibers
where are cell bodies of sensory neurons located?
ganglia outside of the CNS
what is the oligodendrocytes job?
myelination of fibers in the CNS
what is the fastest nerve fiber?
A
what is found in the CNS and binds axons and blood vessels to each other?
astrocytes
what is a gap b/w Schwan cells in the PNS called?
node of Ranvier
which cerebral hemisphere is usually more dominant? Left or Right?
Left
What is the limbic system responsible for?
the emotionas
What do commissural fiber form?
corpus callosum
where does the spinal cord end?
L1 or L2
what opens ion channels to provoke rapid response?
direct acting neurotransmitters
what is a synapses?
where neurons communicate w each other
what does the CNS consist of?
brain and spinal cord
the part of a neuron that conducts impulses away from its cell body is a what?
Axon
what is the function of ependymal cells?
moving CSF
what is another word for neurilemma?
the sheath of schwann
where are bipolar neurons usually found?
in the retina of the eye
function of the association neuron?
connecting other neurons
what is the part of the neuron that normally receives stimuli?
dendryte
what prevents an impulse from being transmitted directly from one neuron to another?
…
What are the subdivisions of the ANS?
sympathetic and parasympathetic
what are astrocytes?
,
what is the large commissure that connects the Left/Right side of the brain?
corpus callosum
what is the function of the arachnoid villi?
absorbs CSF into venous blood
what makes up the diencephalon?
hypothalamus/thalamus/ epithalamus
what is the substantia nigra?
largest nuclear mass of the midbrain
what is the amygdala responsible for?
main switch station for ….
the arbor vitae refers to grey or whit mater?
white
what does the brain stem consist of?
,
is serotonin an indoleamine?
ya
where is the primary auditory cortex located?
temporal lobe
the subarachnoid space is below what meninges?
the arachnoid mater and the pia
what is the medulla responsible for?
heart rate and BP
what does the central sulcus separate?
frontal and parietal
what fissure separates the cerebral hemisphere?
longitudinal fissure
what is the shallow groove on the brain?
sulcus
what is the function of the hypothalamus?
thermostat: regulate temperature
what are the elevated ridges of the brain?
gyri
what sulcus separates the frontal and temporal lobe?
lateral sulcus
what is the brocas area responsible for?
motor speech area
what are the structures of the limbic system?
.
what is huntingtons disease?
.
what is the mildest head/brain injury?
.
where is the white mater located?
.
what is the name of an eeg when an adult has an disorder?
/,
what is the function of the projection fiber?
.
what is the pons responsible for?
.
a tremor at rest is a good indicator of what disease?
.
what is the all or none phenomenon
.
which brain waves are only normal for kids?
.
