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15.1 General Properties of the Autonomic Nervous System

1
The efferent pathway of the autonomic nervous system consists of
A)a single neuron which does not synapse.
B)multiple neurons which synapse at a ganglion.
C)multiple neurons which synapse without a ganglion.
D)an efferent pathway similar to a spinal reflex.
2
The location of efferent neuron cell bodies is
A)different between the autonomic and somatic nervous systems.
B)always found in the peripheral nervous system in both the somatic and autonomic nervous systems.
C)always found in the central nervous system for both the somatic and autonomic nervous systems.
D)found in the autonomic ganglion for the autonomic nervous system.
3
The efferent pathway for the somatic nervous system
A)synapses just outside the spinal cord at a paravertebral ganglion.
B)synapses in a ganglion just outside the receptor.
C)synapses directly with the effector.
D)Both A and B are correct.
4
Autonomic tone refers to the fact that
A)the parasympathetic nervous system is active only when the sympathetic is at rest.
B)the parasympathetic branches always send inhibitory signals while the sympathetic branches always send excitatory signals.
C)the parasympathetic branches always send excitatory signal while the sympathetic branches always send inhibitory signals.
D)both systems are active at the same time but activity may shift with the body's needs.

15.2 Anatomy of the Autonomic Nervous System

5
This organ consists of modified postganglionic neurons without dendrities or axons.
A)kidney
B)adrenal gland
C)pancreas
D)spleen
6
The efferent pathway for the sympathetic nervous system may consist of
A)synapses just outside the spinal cord at a paravertebral ganglion.
B)synapses in a ganglion just outside the receptor.
C)synapses directly with the effector.
D)Both A and B are correct.

15.3 The Autonomic Effects on Target Organs

7
Input from parasympathetic nerves decrease heart rate while input from the sympathetic nerves increase heart rate. This is an example of
A)cooperative effects.
B)vasomotor tone.
C)antagonistic effects.
D)enteric effects.
8
When stimulated by the parasympathetic division, the bronchi will
A)constrict.
B)dilate.

15.4 Central Control of Autonomic Function

9
The major control center of the visceral motor system is the
A)thalamus.
B)basal nuclei.
C)cerebrum.
D)hypothalamus.
10
Several regions of the brainstem mediate autonomic responses. Which of the following is not mediated by these areas?
A)salivation
B)defecation
C)pupillary constriction
D)blood pressure







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