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Activity 7

Terms in this set (30)

What term describes the bundles of nerve fibers within the central nervous system?
fascicles
tracts
perineurium
synapse
tracts
Identify the letter that indicates the gaps between Schwann cells that are known as myelin sheath gaps (nodes of Ranvier).
A
B
C
D
E
D
The _____ of a neuron is a single process that usually extends from a tapered portion of the cell body.
dendrite
neurofibril
axon
Nissl body
axon
These regions of the neuron direct electrical currents toward the cell body.
synapse
axon terminal
axon
cell body
dendrite
dendrite
Identify the letter that indicates the region of a neuron where neurotransmitters are released.
A
B
C
D
E
E
Identify which diagram represents cells that produce and circulate cerebrospinal fluid.
A
B
C
D
E
D
Identify which diagram represents a microglial cell.
A
B
C
D
E
C
Identify which diagram represents a cell that produces a myelin sheath in the central nervous system.
A
B
C
D
E
E
The ________ of a presynaptic neuron associates with the dendrite of a postsynaptic neuron.
synapse
axon terminal
axon
cell body
dendrite
axon terminal
Which of the following is not a structural classification of neurons?
bipolar
unipolar
multipolar
polar
polar
The efferent pathways of the autonomic nervous system can be divided into the __________ divisions.
parasympathetic and sympathetic
parasympathetic and autonomic
sympathetic and autonomic
visceral sensory and somatic sensory
parasympathetic and sympathetic
The glia cells that help form the blood-brain barrier are the
astrocytes.
microglia.
oligodendrocytes.
ependymal cells.
astrocytes
Identify the letter that indicates a Schwann cell.
A
B
C
D
E
C
Nerves that originate from the brain are called _____ nerves.
cranial
peripheral
afferent
spinal
cranial
Excitable cells that conduct the impulses are called
glia cells.
neurons.
astrocytes.
Schwann cells.
neurons
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