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Human Anatomy, 6/e
Kent Van De Graaff, Weber State University

Nervous Tissue and the Central Nervous System

Feedback True or False Quiz

Please answer all questions. The numbers at the end of each question refer to the textbook page where the question topic is discussed.



1

The spinal cord ends caudally at the coccyx. (384)
A)True
B)False
2

The anterior median fissure and the posterior median sulcus extend the length of the spinal cord. (384)
A)True
B)False
3

Descending tracts of the spinal cord may originate from the cerebrum, cerebellum, mesencephalon (midbrain), or brain stem. (388)
A)True
B)False
4

For a cerebral angiogram, a radiopaque substance is injected into the meninges to reveal aneurysms and vascular constrictions or displacements by tumors. (391)
A)True
B)False
5

An electroencephalogram (EEG) may detect brain trauma in epileptic patients, but not seizures. (391)
A)TRUE
B)FALSE
6

A nerve block is the same as a local anesthetic. (392)
A)True
B)False
7

Meningitis is the most common disease of the nervous system and is the third most frequent cause of death in the United States. (395)
A)True
B)False
8

Neurology is the study of the diseases of the nervous system. (344)
A)True
B)False
9

The nervous system functions with the circulatory system in coordinating the activities of the other body systems. (344)
A)True
B)False
10

The functions of the autonomic nervous system are independent of those of the central and peripheral nervous systems in regulating the visceral organs. (345)
A)True
B)False
11

The central nervous system derives from ectoderm, whereas the peripheral nervous system derives from mesoderm. (346)
A)True
B)False
12

All of the neurons and most of the neuroglia of the body derive from the embryonic neural plate. (347)
A)True
B)False
13

A person is born with all the neurons he or she is capable of producing. (348)
A)True
B)False
14

The cell body is the enlarged portion of the neuron that contains the nucleus and nucleolus surrounded by cytoplasm. (348)
A)True
B)False
15

It is thought that axonal transport within a neuron is responsible for the movement of the herpes virus, rabies virus, and tetanus toxin. (348)
A)True
B)False
16

The neurolemmocytes form a regeneration tube, which helps guide the growing axon tip to its proper destination. (351)
A)True
B)False
17

Neurons within the brain contain perivascular feet that are structurally involved in the blood-brain barrier. (351)
A)True
B)False
18

The autonomic nervous system is characterized by the presence of sensory and motor bipolar neurons. (352)
A)True
B)False
19

Somatic motor nerve fibers convey impulses from the CNS to the skeletal muscles, causing them to contract. (352)
A)True
B)False
20

Synaptic transmission is made possible by the secretion of cholinesterase from the synaptic vesicles of a presynaptic neuron. (358)
A)True
B)False
21

As an impulse extends along an axon, there is a slight loss in amplitude due to current spread. (357)
A)True
B)False
22

The speed of impulse conduction is faster in myelinated neurons with relatively large diameters than in unmyelinated nerve fibers with small diameters. (357)
A)True
B)False
23

Aspirin and caffeine affect the nervous system by altering the rates, or speed, of nerve conduction. (358)
A)True
B)False
24

The entire CNS is protected by a bony encasement. (358)
A)True
B)False
25

The brain is the only part of the CNS that is covered with meninges and bathed in cerebrospinal fluid. (358)
A)True
B)False
26

Gray matter exists only as the outer covering of the brain where it is convoluted. (359)
A)True
B)False
27

White matter within the brain consists of aggregations of dendrites and myelinated axons and associated neuroglia. (359)
A)True
B)False
28

The brain of an adult receives approximately 20% of the total resting cardiac output. (359)
A)True
B)False
29

The volume of blood flow to the brain varies considerably depending on the extent of mental or physical activity. (359)
A)True
B)False
30

Cerebral gyri and cerebral sulci form the convolutions of the white matter within the cerebral cortex. (363)
A)True
B)False