Hole's Essentials of Human Anatomy & Physiology, 12th Edition (Shier)

Chapter 9: Nervous System

Post-Test Questions

1
When impulses from various sources have an additive effect on a neuron, the process is called
A)facilitation
B)divergence
C)convergence
D)autonomic switching
2
Which component of a reflex arc is located entirely within the central nervous system (CNS)?
A)effector
B)interneuron
C)sensory neuron
D)receptor
3
The organs of the central nervous system are the
A)brain and cranial nerves
B)brain and meninges
C)cranial and spinal nerves
D)brain and spinal cord
4
The outer membrane covering the brain is composed of dense connective tissue, and is called the
A)dura mater
B)arachnoid mater
C)periosteum
D)pia mater
5
Cerebrospinal fluid is mainly found between the
A)arachnoid mater and the dura mater
B)dura mater and the bones of the skull
C)pia mater and arachnoid mater
D)pia mater and the surface of the brain and spinal cord
6
In the adult, the spinal cord ends
A)at the sacrum
B)between thoracic vertebrae 11 and 12
C)between lumbar vertebrae 1 and 2
D)at lumbar vertebra 5
7
If a person has no sensation in the legs, which of the following portions of the spinal cord may be injured or damaged?
A)ascending tracts of the spinal cord
B)anterior horn in the lumbar enlargement
C)posterior horn in the cervical enlargement
D)descending tracts of the spinal cord
8
What structure connects the left and right cerebral hemispheres?
A)corpus callosum
B)falx cerebri
C)longitudinal fissure
D)falx cerebelli
9
Which of the following is involved in hearing a phone ring?
A)occipital lobe
B)parietal lobe
C)frontal lobe
D)temporal lobe
10
Which of the following is a function of the association areas in the frontal lobe?
A)recognizing your mother
B)planning a party
C)reading your textbook
D)understanding your friend’s speech
11
The pathologic movements of Parkinson and Huntington disease are due to damage in the
A)extrapyramidal tracts
B)primary motor area
C)basal nuclei
D)cerebellum
12
Cerebrospinal fluid (CSF) is produced by the
A)fourth ventricle
B)cerebral aqueduct
C)pia mater
D)choroid plexuses
13
The diencephalon contains all of the following structures except
A)pons
B)thalamus
C)optic chiasma
D)pineal gland
14
The part of the brain stem that contains centers for cardiovascular control, sneezing and swallowing is the
A)cerebellum
B)midbrain
C)medulla oblongata
D)pons
15
The part of the brain responsible for regulation of sleep and wakefulness is the
A)reticular formation
B)diencephalon
C)thalamus
D)limbic system
16
The lobes of the cerebellum are connected by the
A)vermis
B)falx cerebelli
C)cerebellar cortex
D)cerebellar peduncles
17
The cranial nerves that control movement of the eyes are
A)optic, oculomotor, and facial
B)oculomotor, trochlear, and abducens
C)optic, oculomotor, and abducens
D)oculomotor, trigeminal, and abducens
18
The cranial nerve responsible for equilibrium and hearing is the
A)vestibulocochlear
B)abducens
C)facial
D)trigeminal
19
Which of the following cranial nerves innervates structures below the neck?
A)hypoglossal
B)glossopharyngeal
C)olfactory
D)vagus
20
The portion of the nervous system that is most active when the body is at rest is the
A)reticular formation
B)parasympathetic division
C)somatic division
D)sympathetic division
21
Release of neurotransmitter from the presynaptic neuron is dependent upon diffusion of calcium ions into the cell.
A)True
B)False
22
The sensory function of the nervous system is carried out by efferent fibers.
A)True
B)False
23
The dendrite arises from a hillock or elevation of the cell body and carries impulses away from the cell body.
A)True
B)False
24
Myelinated fibers form the white matter in the central nervous system.
A)True
B)False
25
A neuron may have many dendrites but only one axon.
A)True
B)False
26
Neurons that are deprived of oxygen can be irreversibly damaged.
A)True
B)False
27
Neurons are the most abundant cells in the nervous system.
A)True
B)False
28
Myelination begins in prenatal development and is complete by the time of birth.
A)True
B)False
29
Sodium ions pass more easily through the cell membrane than potassium ions.
A)True
B)False
30
The amount of change in the resting potential of a neuron’s cell membrane is proportional to the intensity of the stimulus, as long as the threshold is not reached.
A)True
B)False
31
The speed of nerve impulse conduction increases as the diameter of the nerve fiber increases.
A)True
B)False
32
The short time during an action potential when an axon is non-responsive to a threshold stimulus is called the all or none principle.
A)True
B)False
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.