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Nervous System Structure Review
Test Description: Part 1 of nervous system
Instructions: Answer all questions to get your test result.
1) the two main types of CELLS in the nervous system are
A
neurons and glial
B
sensory and motor
C
afferent and efferent
D
central and peripheral
2) the ORGANS of the nervous system are divided into two main groups based on location
A
concentrated and diffuse
B
sympathetic and parasympathetic
C
autonomic and somatic
D
central and peripheral
3) nodes of Ranvier, aka neurofibril nodes, are found (among other places)
A
between Schwann cells
B
between adjacent neurons
C
between axons and dendrites
D
only in motor neurons
4) damage to the occipital lobes of the brain can impair
A
thinking
B
remembering
C
seeing
D
smelling
5) sensory neurons enter the ____ side of the spinal cord, while motor neurons exit the ____ side of the spinal cord
A
posterior, anterior
B
left, right
C
ventral, dorsal
D
medial, lateral
6) a NERVE is
A
found only in the CNS
B
an organ with multiple tissues in it
C
few to many bundles of neurons
D
another name for a single neuron, either affective or effective
7) ______ cells in the CNS perform a function equivalent to that performed by Schwann cells in the PNS
A
microglia
B
oligodendrocytes
C
astrocytes
D
ependymal cells
8) in myelinated neurons, depolarizations occurs mostly at the
A
dendrites
B
nodes of ranvier
C
terminal knob
D
soma
9) in myelinated neurons, impulses 'jump' from node to node in a process called
A
salubrious injection
B
saltatory conduction
C
salivary conflagration
D
salutatory induction
10) an automatic, unconscious response to a change inside or outside the body is a
A
rectus
B
reaction
C
reflection
D
reflex
11) a nerve is a single neuron that transmits impulses
A
TRUE
B
FALSE
C
I HAVE NO IDEA
D
I DONT CARE
12) when the nerve impulse reaches the synapse
A
it celebrates completing its long journey
B
an electrical discharge occurs
C
a chemical discharge occurs
D
the synaptic cleft narrows
13) the presynaptic neuron releases
A
highly charged ions
B
neurotransmitters
C
photons
D
receptors
14) infants respond more slowly to stimuli because their neurons
A
lack trans membrane ion pumps
B
lack interneuronal connections
C
have not fully myelinated
D
have not extended fully
15) nerve impulses traveling TOWARD the CNS are
A
faster than those going away
B
said to be efferent
C
given priority at the plexus
D
said to be afferent
16) ____________ carry out a key part of the sensory function
A
transmitters
B
effectors
C
receptors
D
affectors
17) the integrative (aka associative) function takes place in the
A
central nervous system
B
fascicle
C
peripheral nervous system
D
synapse
18) in the nerve there are 3 membranes: from the INNERmost to the OUTERmost they are
A
epi-, peri-, and endo- neuria
B
endo-, peri-, and epi- neuria
C
viceral, parietal, and intermediary nerium
D
peri-, epi-, and endo- neuria
19) the cell on the presynaptic side of a synapse is always a(n)
A
glial cell
B
muscle fiber
C
axon
D
neuron
20) divergence in a neuronal pool is when
A
a neuron divides to form 2 new ones
B
changes into a glial cell
C
a neuron sends axons to multiple other neurons
D
a neuron receives axons from more than one other neuron
*select an answer for all questions
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