Term
. Autonomic motor nerves do NOT innervate
A. smooth muscle.
B. skeletal muscle.
C. cardiac muscle.
D. glands. |
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Definition
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Term
1. Somatic motor neurons have a direct connection between the CNS and their effector organs while ______________ motor neurons must synapse on with a peripheral neuron before reaching their effectors.
A. skeletal
B. sensory
C. autonomic
D. Both skeletal and autonomic are correct. |
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Definition
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Term
. Somatic motor reflexes involve
A. the autonomic nervous system.
B. contraction of smooth muscle.
C. contraction of skeletal muscle.
D. the autonomic ganglia. |
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Definition
| C. contraction of skeletal muscle. |
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Term
. The autonomic nervous system
A. innervates skeletal muscle.
B. is not usually under conscious control.
C. is always excitatory.
D. has a single nerve extending from the spinal cord. |
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Definition
| B. is not usually under conscious control. |
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Term
. Damage to the autonomic motor nerves would probably result in
A. no change in muscle tone.
B. muscle atrophy.
C. flaccid paralysis.
D. increased skeletal muscle contraction. |
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Definition
| A. no change in muscle tone. |
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Term
. ____________ fibers have relatively slower nerve conduction because they are thin and unmyelinated.
A. Preganglionic autonomic sympathetic
B. Postganglionic autonomic sympathetic
C. Preganglionic somatic
D. Postganglionic somatic |
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Definition
| B. Postganglionic autonomic sympathetic |
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Term
. The parasympathetic division of the autonomic nervous system
A. has long postganglionic neurons.
B. has a single neuron arising from the spinal cord.
C. has relatively short preganglionic neurons.
D. has terminal ganglia embedded in the visceral effectors |
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Definition
| D. has terminal ganglia embedded in the visceral effectors |
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Term
. Damage to the terminal ganglia would have the greatest effect on
A. somatic motor nerves.
B. sympathetic motor nerves.
C. parasympathetic motor nerves.
D. somatic reflex function. |
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Definition
| C. parasympathetic motor nerves. |
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Term
The parasympathetic division of the autonomic nervous system
A. utilizes norepinephrine as a postganglionic neurotransmitter.
B. has a relatively short preganglionic neuron.
C. utilizes acetylcholine as a preganglionic neurotransmitter.
D. includes the adrenal medulla. |
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Definition
| C. utilizes acetylcholine as a preganglionic neurotransmitter. |
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Term
The division of the autonomic nervous system originating only from spinal nerves
A. is involved in mediating every day responses.
B. has adrenergic receptors on the postganglionic cell body.
C. releases acetylcholine from the postganglionic neuron.
D. mediates the body's response to stress. |
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Definition
| D. mediates the body's response to stress. |
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Term
"Synapses en passant" refers to the fact that postganglionic autonomic neurons release neurotransmitter
A. from the axon terminal.
B. only when receptors pass over the axon.
C. along the length of the axon.
D. from the soma. |
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Definition
| C. along the length of the axon. |
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Term
Atropine would
A. block the release of epinephrine from the adrenal medulla.
B. block constriction of the pupil.
C. stimulate skeletal muscle contraction.
D. facilitate near vision. |
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Definition
| B. block constriction of the pupil. |
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Term
The major regulatory center of the autonomic system is, according to many scientists, the ______________ since this brain region has functions, such as control of body temperature, that require appropriate activation of sympathetic and parasympathetic nerves.
A. hypothalamus
B. thalamus
C. midbrain
D. cerebrum |
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Definition
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