Exam 7: The Peripheral Nervous System: Efferent Division

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Complete each of the following statments. Most sympathetic postganglionic fibers have cell bodies in a sympathetic ganglion ____________________.

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Use this figure to answer the following questions. Identify the neurons that are exciting (depolarizing and/or increasing the activity of) their effectors. Use this figure to answer the following questions. Identify the neurons that are exciting (depolarizing and/or increasing the activity of) their effectors.    a.	1, 2, and 3 b.	3 and 4 c.	4 and 5 d.	1, 4, and 5 e.	3 and 5 a. 1, 2, and 3 b. 3 and 4 c. 4 and 5 d. 1, 4, and 5 e. 3 and 5

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Match the chemical with correct characteristic.
curare
Blocks release of ACh.
black widow spider venom
Antibodies inactivate ACh receptor sites.
organophosphates
Causes explosive release of ACh.
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Responses:
curare
Blocks release of ACh.
black widow spider venom
Antibodies inactivate ACh receptor sites.
organophosphates
Causes explosive release of ACh.
Clostridium botulinum toxin
Binds with ACH receptor sites.
myasthenia gravis
Inhibit acetylcholinesterase.
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Compare and contrast the various types of autonomic receptors.

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The axons controlling skeletal muscles are large and myelinated.

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Complete each of the following statments. Depolarization of the motor end plate results from more ____________________ ions entering the cell than ____________________ ions leaving the cell.

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Complete each of the following statments. Binding of ____________________ to muscarinic receptors may be initiate EPSPs or IPSPs.

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Dual innervation of organs by both branches of the autonomic nervous system allows a fine degree of control over these organs.

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Compare and contrast the autonomic and somatic nervous systems with reference to the following: (1) the types of effectors stimulated; (2) number of neurons involved; and (3) the specific neurotransmitters released onto effectors.

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Complete each of the following statments. ____________________ fibers of the autonomic nerve pathway are located partially in the central nervous system.

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The sympathetic nervous system causes

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The motor end plate

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Efferent neurons

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Complete each of the following statments. In the autonomic nervous system, a(n) ____________________ neuron sends impulses away from a ganglion.

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The preganglionic fibers of the autonomic nervous system are cholinergic fibers.

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ACh always causes depolarization of skeletal muscles.

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The parasympathetic nervous system dominates in situations when a person is afraid.

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Acetylcholine

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Atropine is an antagonist of ACh and works by

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Complete each of the following statments. ____________________ is the neurotransmitter that causes an EPSP on an autonomic neuron's dendrite located within a ganglion.

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