Human phys test bank
,The portions of a neuron that extend off of the roughly spherical cell body are usually collectively called
A) projections.
B) prostheses.
C) processes.
D) protrusions - VERRIFIED ANSWERS-processes
Neurotransmitter is stored and released from
A) axon varicosities only.
B) axon terminals only.
C) dendritic spines only.
D) cell bodies only.
E) axon terminals and axon varicosities. - VERRIFIED ANSWERS-axon terminals and axon varicosities
Information coming into the central nervous system is transmitted along ________ neurons.
A) sensory
B) afferent
C) efferent
D) afferent and sensory
E) sensory and efferent - VERRIFIED ANSWERS-afferent and sensory
The afferent and efferent neurons together form the
A) peripheral nervous system.
B) autonomic division.
C) visceral nervous system.
D) central nervous system.
E) somatic motor division - VERRIFIED ANSWERS-peripheral nervous system
The brain and spinal cord together compose the
A) central nervous system.
,B) somatic motor division.
C) peripheral nervous system.
D) visceral nervous system.
E) autonomic division. - VERRIFIED ANSWERS-central Nervous System
Exocrine glands, smooth muscles, and cardiac muscles are controlled by the A) peripheral nervous
system.
B) autonomic division.
C) somatic motor division.
D) central nervous system. - VERRIFIED ANSWERS-autonomic division
Autonomic motor neurons are subdivided into the
A) sympathetic and parasympathetic branches.
B) somatic and enteric branches.
C) central and peripheral branches.
D) visceral and somatic branches.
E) visceral and enteric branches. - VERRIFIED ANSWERS-sympathetic and parasympathetic branches
The enteric nervous system is a network of neurons that function in controlling
A) excretion, particularly urination.
B) the skeletal system.
C) digestion.
D) reproduction.
E) the endocrine system. - VERRIFIED ANSWERS-digestion
In general, the nervous system is made up of which two types of cells?
1. motor
2. neurons
3. sensory
, 4. glia
5. associative
A) 2 and 4
B) 1 and 3
C) 3 and 5
D) 1 and 2
E) 3 and 4 - VERRIFIED ANSWERS-A) 2 and 4
The cell body of neurons is about
A) 10% of the cell volume.
B) 90% of the cell volume.
C) 50% of the cell volume.
D) found in the same position on every neuron. - VERRIFIED ANSWERS-10% of the cell volume
Interneurons are found
A) only in the brain.
B) throughout the nervous system.
C) in the CNS.
D) only in spinal nerves.
E) only in the spinal cord. - VERRIFIED ANSWERS-in the CNS
The multiple thin, branched structures on some neurons whose main function is to receive incoming
signals are the
A) dendrites.
B) cell bodies.
C) soma.
D) axons.
E) None of the answers are correct. - VERRIFIED ANSWERS-dendrites
,The portions of a neuron that extend off of the roughly spherical cell body are usually collectively called
A) projections.
B) prostheses.
C) processes.
D) protrusions - VERRIFIED ANSWERS-processes
Neurotransmitter is stored and released from
A) axon varicosities only.
B) axon terminals only.
C) dendritic spines only.
D) cell bodies only.
E) axon terminals and axon varicosities. - VERRIFIED ANSWERS-axon terminals and axon varicosities
Information coming into the central nervous system is transmitted along ________ neurons.
A) sensory
B) afferent
C) efferent
D) afferent and sensory
E) sensory and efferent - VERRIFIED ANSWERS-afferent and sensory
The afferent and efferent neurons together form the
A) peripheral nervous system.
B) autonomic division.
C) visceral nervous system.
D) central nervous system.
E) somatic motor division - VERRIFIED ANSWERS-peripheral nervous system
The brain and spinal cord together compose the
A) central nervous system.
,B) somatic motor division.
C) peripheral nervous system.
D) visceral nervous system.
E) autonomic division. - VERRIFIED ANSWERS-central Nervous System
Exocrine glands, smooth muscles, and cardiac muscles are controlled by the A) peripheral nervous
system.
B) autonomic division.
C) somatic motor division.
D) central nervous system. - VERRIFIED ANSWERS-autonomic division
Autonomic motor neurons are subdivided into the
A) sympathetic and parasympathetic branches.
B) somatic and enteric branches.
C) central and peripheral branches.
D) visceral and somatic branches.
E) visceral and enteric branches. - VERRIFIED ANSWERS-sympathetic and parasympathetic branches
The enteric nervous system is a network of neurons that function in controlling
A) excretion, particularly urination.
B) the skeletal system.
C) digestion.
D) reproduction.
E) the endocrine system. - VERRIFIED ANSWERS-digestion
In general, the nervous system is made up of which two types of cells?
1. motor
2. neurons
3. sensory
, 4. glia
5. associative
A) 2 and 4
B) 1 and 3
C) 3 and 5
D) 1 and 2
E) 3 and 4 - VERRIFIED ANSWERS-A) 2 and 4
The cell body of neurons is about
A) 10% of the cell volume.
B) 90% of the cell volume.
C) 50% of the cell volume.
D) found in the same position on every neuron. - VERRIFIED ANSWERS-10% of the cell volume
Interneurons are found
A) only in the brain.
B) throughout the nervous system.
C) in the CNS.
D) only in spinal nerves.
E) only in the spinal cord. - VERRIFIED ANSWERS-in the CNS
The multiple thin, branched structures on some neurons whose main function is to receive incoming
signals are the
A) dendrites.
B) cell bodies.
C) soma.
D) axons.
E) None of the answers are correct. - VERRIFIED ANSWERS-dendrites
