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SAC A&P I > Ch. 14 ANS > Flashcards

Ch. 14 ANS Flashcards

1
Q

What axon releases the neurotransmitter Norepinephrine?

A

The terminus of a sympathetic postganglionic neuron

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2
Q

Which division of the nervous system has long preganglionic neurons?

A

Parasympathetic

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3
Q

Which target organ is not affected by the parasympathetic division of the autonomic nervous system (ANS)?

A) Liver
B) Heart
C) Lungs
D) Adrenal medulla

A

Adrenal medulla

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4
Q

Identify the series of events in a sympathetic pathway.

A

Thoracolumbar origin, short preganglionic fiber, ACh release at ganglion, long postganglionic fiber, NE release at effector

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5
Q

What is an effect of norepinephrine binding to beta 2 adrenergic receptors?

A

Vasodilation

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6
Q

The ? oversees ANS activity.

A

Hypothalamus

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7
Q

The root word ______ means exhibiting or stimulating activity.

A

-ergic

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8
Q

The word root_______ means viscera.

A

Splanchn-

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9
Q

The vessels serving abdominal organs are collectively called _______ circulation.

A

Splanchnic

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10
Q

Neurons which have epinephrine as a neurotransmitter are _______ neurons.

A

Adrenergic

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11
Q

Secreted by preganglionic sympathetic fibers.

A

Acetylcholine

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12
Q

Secreted by preganglionic parasympathetic fibers.

A

Acetylcholine

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13
Q

Secreted by postganglionic sympathetic fibers to sweat glands.

A

Acetylcholine

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14
Q

Secreted by postganglionic parasympathetic fibers.

A

Acetylcholine

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15
Q

Secreted by most postganglionic sympathetic fibers.

A

Norepinephrine (NE)

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16
Q

What nervous system has short preganglionic and long postganglionic fibers?

A

Sympathetic

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17
Q

All of the following characterize the ANS except:

A) Two-neuron efferent chain
B) Presence of neron cell bodies in the CNS
C) Presence of neuron cell bodies in the ganglia
D) Innervation of skeletal muscles

A

Innervation of skeletal muscles

18
Q

Adrenergic fibers are found in the ? system.

A

Sympathetic

19
Q

The ? system increases heart rate and blood pressure.

A

Sympathetic

20
Q

The ? system increases gastric motility and secretion.

A

Parasympathetic

21
Q

The ? system innervates blood vessels.

A

Sympathetic

22
Q

The white rami communicantes contain what kind of fibers?

A

Preganglionic Sympathetic

23
Q

All preganglionic ANS fibers secrete ?

A

Acetylchonline

24
Q

All postganglionic fibers of the parasympathetic nervous system secrete?

A

Acetylcholine

25
Q

Only postganglionic sympathetic fibers secrete ?

A

Norepinephrine

26
Q

Where are the cell bodies of visceral sensory neurons?

A

Dorsal root ganglia and in the sensory ganglia of cranial nerves

27
Q

Postganglionic axons of the ? division secrete norepinephrine.

A

Sympathetic

28
Q

Postganglionic axons of the ? division secrete acetylcholine.

A

Parasympathetic

29
Q

The ? division consists of long preganglionic and short postganglionic axons.

A

Parasympathetic

30
Q

The ? division consists of short preganglionic and long postganglionic axons.

A

Sympathetic

31
Q

The ? division arises from cranial and sacral nerves.

A

Parasympathetic

32
Q

The ? division arises from spinal nerves T1 - L3.

A

Sympathetic

33
Q

The ? division causes dry mouth and dilates bronchioles.

A

Sympathetic

34
Q

The ? division constricts pupils and decreases heart rate.

A

Parasympathetic

35
Q

Parasympathetic preganglionic neurons arise from ? and ?

A

Brain stem and Sacrum

36
Q

Preganglionic sympathetic axons leave the spinal cord via the ?

A

White rami communicantes

37
Q

Cholinergic (ACh) receptors are classified as either ? or ?

A

Nicotinic or Muscarinic

38
Q

Adrenergic (NE) receptors are classified as :

A

Alpha 1 or 2

Beta 1, 2 or 3

39
Q

Most visceral organs are innervated by ? division.

A) Parasympathetic
B) Sympathetic
C) Both

A

Both

40
Q

Preganglionic neurons develop from the ?

A

Neural tube

SAC A&P I (13 decks)

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