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Book cover image
Hole's Human Anatomy & Physiology, 9/e
David Shier, Washtenaw Community College
Ricki Lewis, The University at Albany
Jackie Butler, Grayson County Community College

Nervous System I: Basic Structure and Function

True/False Quiz

Please answer all questions



1

A damaged phrenic nerve would heal more slowly than a severed spinal nerve.
A)True
B)False
2

Oligodendrocytes can be found within the brain.
A)True
B)False
3

Nodes of Ranvier are only found on motor axons.
A)True
B)False
4

There is a higher concentration of K+ outside of a resting neuron than Na+.
A)True
B)False
5

A neuron will not respond to any stimulus during its absolute refractory period.
A)True
B)False
6

The axon nerve impulse is self-propagating and occurs in the direction towards the cell body.
A)True
B)False
7

A synapse is a junction between two dendrites.
A)True
B)False
8

Norepinephrine, epinephrine, dopamine and serotonin are classed as monoamine neurotransmitters.
A)True
B)False
9

Food additives, such as MSG (monosodium glutamate) derived from glutamic acid, could act as neurotransmitters.
A)True
B)False
10

Neurotransmitters are usually released into the synaptic vesicles during depolarization.
A)True
B)False
11

Sub-threshold stimuli can never evoke an action potential.
A)True
B)False
12

Convergence is a way of amplifying a stimulus through a neuronal pool.
A)True
B)False
13

An effector is usually a muscle or motor nerve.
A)True
B)False
14

Motor neurons usually have one axon and several dendrites.
A)True
B)False
15

Nervous tissue includes areas of connective tissue.
A)True
B)False
16

Somatic afferent fibers would carry sensory impulses away from the brain, towards areas such as the eye.
A)True
B)False
17

Most brain tumors arise from neuroglial cell overgrowth.
A)True
B)False
18

A damaged CNS nerve could not regenerate as easily as a PNS fiber.
A)True
B)False
19

Gray matter most significantly contains cell bodies and dendrites.
A)True
B)False
20

The ion that always moves in a membrane direction opposite to sodium is K+.
A)True
B)False
21

Drugs that hyperpolarize an axon would make the nerve less sensitive to stimulations.
A)True
B)False
22

Calcium channels open during synaptic transmission.
A)True
B)False
23

Having myelin increases the velocity of conduction.
A)True
B)False
24

The action potential is around -70 mv.
A)True
B)False
25

The all-or-none response means that a subthreshold stimulus can never stimulate a nerve.
A)True
B)False
26

Sodium moves out of an axon as it is depolarizing.
A)True
B)False
27

Local potential changes are graded.
A)True
B)False
28

Vesicles are intracellular accumulation of neurotransmitter.
A)True
B)False