Question and answer already passed
2025
The phagocytic cells in the CNS are the ______. - correct answer Microglia
Which part of a neuron comes in close proximity to another neuron at the
synapse? - correct answer Synaptic Knob
The______of a neuron carries the impulse towards the nucleus. - correct
answer dendrite
A morphine-like pain suppressing brain substance is _____. - correct answer
Beta-endorphin
The PNS is comprised of cranial nerves and _____ - correct answer spinal
nerves
Saltatory conduction occurs when an impulse jumps from _____. - correct
answer node to node
The nucleus of a sensory neuron can be found within the _____. - correct
answer ganglia
Acetylcholine is decomposed by _____almost as fast as it is released. -
correct answer acetylcholinesterase
, Which of these is true when a neuron is at rest? - correct answer the outside
is positive
Gross nerves that contain sensory impulses are referred to as _____. - correct
answer afferent
The cells that conduct messages towards the brain are the_______________.
- correct answer sensory neurons
The _____cells provide a means of acquiring nutrients in the brain. - correct
answer astrocyte
A neuron with many nerve fibers arising from its cell body and that carries
impulses away from the brain would be classified as __________________. -
correct answer multipolar and motor
The ______cells play a role in the establishment of a blood-brain chemical
barrier. - correct answer astrocyte
A change in a dendrite which lessens the probability of a conduction is the
_____. - correct answer IPSP
Myelin sheaths on the outsides of many axons in the peripheral nervous
system are contributed by ______________. - correct answer Schwann Cells
The _______________ are the types of neuroglial cells that provide myelin in
the central nervous system. - correct answer oligodendrocytes
The cells that produce myelin in the PNS are the ______. - correct answer
Schwann Cells