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