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1
Which of the following could indicate that someone like Christopher Reeve had not totally severed his spinal cord?
A)He regained consciousness at the scene of the accident.
B)He was resuscitated without difficulty.
C)He was able to speak after regaining consciousness.
D)He regained movement in a few muscles in his chest.
2
The supportive tissue of the nervous system is (are)
A)nerve fiber
B)myelin
C)glial cells
D)nerve processes
3
The division of the nervous system that connects body parts with the central nervous system is the
A)autonomic nervous system
B)peripheral nervous system
C)somatic system
D)special sense system
4
The nervous system function that makes conscious decisions possible is the
A)sensory function
B)integrative function
C)motor function
D)none of the above
5
All neurons have a special area where a nerve impulse begins called the
A)soma
B)ganglia
C)trigger zone
D)axon
6
All of the following are structural classifications of neurons except
A)interneurons
B)unipolar neurons
C)multipolar neurons
D)bipolar neurons
7
Movement of sodium and potassium ions across the cell membrane is dependent on
A)the concentration gradient of the electrolyte
B)changes in electrical charge
C)both
D)neither
8
Which of these characteristics is true regarding the strength of an action potential?
A)all-or-none followed
B)dependent upon the intensity of the stimulus
C)increased as the intensity of the stimulus increases
D)dependent on the type and amount of neurotransmitter involved
9
Transmission of impulses across a synapse is made possible by
A)facilitated transport
B)saltatory conduction
C)neurotransmitters
D)an ATP dependent pump
10
Which of the following neurotransmitters is usually excitatory?
A)dopamine
B)GABA
C)Glycine
D)acetylcholine
11
When impulses from various sources have an additive effect on a neuron in the process is called
A)facilitation
B)divergence
C)convergence
D)autonomic switching
12
The function of withdrawal reflexes is to
A)maintain posture
B)limit potential damage
C)both
D)neither
13
The organs of the Central Nervous System are the
A)brain and cranial nerves
B)brain and meninges
C)brain and spinal nerves
D)brain and spinal cord
14
The outer membrane covering the brain is composed of fibrous connective tissues and is called the
A)dura mater
B)arachnoid mater
C)pia mater
D)periosteum
15
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)the vertebrae and the meninges
16
The spinal cord in the adult, ends
A)at the sacrum
B)between the thoracic vertebrae 11 and 12
C)between lumbar vertebrae 1 and 2
D)at lumbar vertebra 5
17
The nerve fibers of both ascending and descending tracts contain
A)axons
B)dendrites
C)both axons and dendrites
D)cell bodies of neurons
18
The hemispheres of the cerebrum are connected by fibers called the
A)corpus callosum
B)falx cerebri
C)tissue of Rolando
D)tentorium
19
The three main portions of the brain are
A)the cerebrum, diencephalons and pons
B)cerebrum, brain stem, and diencephalon
C)cerebellum, brain stem and diencephalon
D)cerebrum, cerebellum, and brain stem
20
Another name for a pyramidal cell is
A)lower motor neuron
B)upper motor neuron
C)unipolar neuron
D)astrocyte
21
The pathologic movements of Parkinson's disease and Huntington's chorea is due to damage in the
A)extrapyramidal tracts
B)primary motor area
C)basal ganglia
D)midbrain
22
Cerebrospinal fluid is produced by the
A)fourth ventricle
B)cerebral aqueduct
C)pia mater
D)choroid plexuses
23
The diencephalon contains all of the following structures except
A)pons
B)thalamus
C)optic chiasma
D)pineal gland
24
The part of the brain stem through which all spinal cord fibers must pass is the
A)hindbrain
B)midbrain
C)medulla oblongata
D)pons
25
The part of the brain responsible for regulation of sleep and wakefulness is the
A)reticular formation
B)diencephalon
C)hypothalamus
D)limbic system
26
The lobes of the cerebellum are connected by the
A)vermis
B)falx cerebelli
C)cerebellar cortex
D)cerebellar peduncles
27
The cranial nerves that control movement of the eyes are
A)nerves I-V
B)nerves III, IV, and VI
C)nerves II-VI
D)nerves V and VII
28
The cranial nerve responsible for equilibrium and hearing is the
A)vestibulocochlear
B)abducens
C)facial
D)trigeminal
29
The only cranial nerve that innervates structures below the neck is the
A)hypoglossal
B)spinal accessory
C)olfactory
D)vagus
30
The part of the nervous system that is most active when the body is at rest is
A)the reticular formation
B)parasympathetic system
C)somatic division
D)sympathetic system
31
An intact nervous system is a fundamental requirement for thought, sensation, memory, movement, and awareness of the world.
A)True
B)False
32
The sensory function of the nervous system is carried out by efferent fibers.
A)True
B)False
33
The dendrite arises from a hillock or elevation of the cell body and carries impulses away from the cell body.
A)True
B)False
34
Myelinated fibers form the white matter in the central nervous system.
A)True
B)False
35
A neuron may have many dendrites but only one axon.
A)True
B)False
36
Neurons that are deprived of oxygen can be irreversibly damaged.
A)True
B)False
37
Neurons are the most abundant cells in the nervous system.
A)True
B)False
38
All myelinated fibers in an infant's nervous system must have developed sheaths by the time an infant starts to walk.
A)True
B)False
39
Sodium ions pass more easily through the cell membrane than potassium ions.
A)True
B)False
40
The amount of change in the resting potential of a cell membrane is proportional to the intensity of the stimulus.
A)True
B)False
41
The speed of nerve impulse conduction increases as the diameter of the nerve fiber increases.
A)True
B)False
42
The short time after a nerve potential when an axon is non-responsive to a threshold stimulus is called the all or none principle.
A)True
B)False







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