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Exam 19: The Autonomic Nervous System

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Question 31

Multiple Choice

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Alpha and beta receptors are found in the sympathetic division. They exist on postganglionic neurons and on visceral effectors.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The second statement is true; the first is false.

E) A) and D)
F) A) and C)

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Question 32

Multiple Choice

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Select the best description of the nuclei in the brain stem:

A) carries parasympathetic impulses to terminal ganglia in most organs of the ventral cavity
B) sympathetic; sends impulses along postganglionic axons to heart
C) receives sympathetic preganglionic axons via thoracic splanchnic nerves
D) contain sympathetic preganglionic cell bodies
E) contain parasympathetic preganglionic cell bodies

F) B) and D)
G) D) and E)

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Question 33

Short Answer

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The motor output component of the autonomic nervous system has two divisions: _____ and _____.

Autonomic plexuses in the thorax, abdomen and pelvis may contain

Which of the following responses is a result of sympathetic stimulation?

The facial (VII) cranial nerves carry parasympathetic preganglionic axons (fibers) to two pairs of terminal ganglia: the _____ and the _____ ganglia.

In the figure below, which letter represents the celiac ganglion (one of the four major prevertebral ganglia) ?

Autonomic neurons that secrete the neurotransmitter acetylcholine:

The major autonomic plexuses of the thorax are the _____ plexus and the ______ plexus.

This leader line points to the right sympathetic trunk ganglion which receives preganglionic axons from thoracic and lumbar spinal cord segments.

Select the best description of the thoracic and lumbar lateral gray horns:

The posterior and lateral portions of the hypothalamus control the _____ division of the autonomic nervous system.

Dual innervation means that an organ is innervated (stimulated) by both the somatic and the autonomic nervous systems.

Arrange the following components of an autonomic reflex arc in the proper order: 1) preganglionic motor neuron 2) receptor 3) integrating center (interneurons) 4) postganglionic motor neuron 5) visceral effector 6) autonomic ganglion 7) sensory neuron

Select the best description of the parasympathetic postganglionic neurons:

A lateral gray horn could be found in the S2 (second sacral) spinal cord segment.

In almost all cases, synapses between preganglionic and postganglionic neurons of the sympathetic division occur either in _____ ganglia or in _____ ganglia.

Bronchoconstriction brought on by various allergens is a _____ response.

Compare and contrast the anatomy of the motor pathways of the sympathetic and parasympathetic divisions of the autonomic nervous system and list the neurotransmitters released at each synapse in each pathway.

In general, the postganglionic axons (fibers) of prevertebral ganglia of the sympathetic division innervate (stimulate) effectors above the diaphragm.