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Chapter 14: ANS

1.

The secretions of the adrenal medulla act to supplement the effects of

sympathetic stimulation

2.

Which of the following does not describe the ANS?

a system of motor neurons that innervates all muscle cells

3.

Preparing the body for the "fight-or-flight" response is the role of the

sympathetic nervous system

4.

The somatic and autonomic nervous systems differ in all of the following except

all of the neurotransmitters

5.

A drug that might be used specifically to reduce heart rate in cardiac patients could be

a beta-blocker

6.

The parasympathetic ganglion that serves the eye is the

ciliary ganglion

7.

Cardiovascular effects of the sympathetic division include all except

dilation of the blood vessels serving the skin and digestive viscera

8.

Over 90% of all parasympathetic fibers are derived from cranial nerve number

X

9.

The "resting and digesting" division of the autonomic nervous system is the

parasympathetic division

10.

Control of temperature, endocrine activity, and thirst are functions associated with the

hypothalamus

11.

Which of these effectors is not directly controlled by the autonomic nervous system?

skeletal muscle

12.

Which of the following is not a result of parasympathetic stimulation?

dilation of the pupils

13.

Which of the following statements is not true?

Sympathetic origin is craniosacral; parasympathetic is thoracolumba

14.

Sympathetic responses generally are widespread because

NE and epinephrine are secreted into the blood as part of the sympathetic response

15.

Sympathetic nerves may leave the spinal cord at which vertebra?

first thoracic

16.

Autonomic ganglia contain

the cell bodies of motor nuerons

17.

The parasympathetic fibers of the ___ nerves innervate smooth muscles of the eye that cause the lenses to bulge to accommodate close vision.

oculomotor

18.

Fibers that enter and leave the sympathetic chain without synapsing form structures called

splanchnic nerves

19.

Which of the following is not a plexus of the vagus nerve?

celiac

20.

Visceral reflex arcs differ from somatic in that

visceral arcs involve two motor neurons

21.

The parasympathetic tone

determines normal activity of the urinary tract

22.

Once a sympathetic preganglionic axon reaches a trunk ganglion, it can do all but which one of the following?

synapse with a parasympathetic neuron in the same trunk ganglion

23.

The white rami communicantes

carry preganglionic axons to the sympathetic chain

24.

Beta-blockers

decrease heart rate and blood pressure

25.

Erection of the penis or clitoris

is primarily under parasympathetic control

26.

Which is a uniquely sympathetic function?

regulation of body temperature

27.

Raynaud's disease

is characterized by exaggerated vasoconstriction in the extremities

28.

Autonomic dysreflexia

involves uncontrolled activation of autonomic neurons

29.

Which sympathetic fibers form the splanchnic nerve?

those that pass through the trunk ganglion to synapse in collateral or prevertebral ganglia

30.

In aging, autonomic inefficiency is often due to

clogging of preganglionic axon terminals with filaments

31.

Where would you not find an autonomic ganglion?

in the armpit

32.

Sympathetic division stimulation causes

increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure

33.

The smooth muscle of the digestive viscera is served largely by the

tenth cranial nerve

34.

The route of major parasympathetic outflow from the head is via the

vagus nerve

35.

Parasympathetic functions include

lens accommodation for close vision

36.

Emotions influence autonomic reactions primarily through integration in the

hypothalumus

37.

The possibility of some control over autonomic responses is demonstrated by

biofeedback

38.

The vagus nerve does not innervate the

parotid gland