Chapter 15 McKinley Anatomy Part 2

d
Consider a basketball player whose heart is racing during the final moments of a game. With seconds on the clock, she makes a jump shot.

Her excitement is a function of her ________ nervous system, and her movements are a function of her _______ nervous system.

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a. parasympathetic, sympathetic
b. sympathetic, parasympathetic
c. somatic, sympathetic
d. sympathetic, somatic
e. somatic, parasympathetic

d
Consider a basketball player whose heart is racing during the final moments of a game. With seconds on the clock, she makes a jump shot. Her excitement is a function of her ________ nervous system, and her movements are a function of her _______ nervous system.

a. parasympathetic, sympathetic
b. sympathetic, parasympathetic
c. somatic, sympathetic
d. sympathetic, somatic
e. somatic, parasympathetic

a
We lack awareness of many of our bodies’ systems for maintaining homeostasis. The sensations, movements, and secretions of organs such as the heart and intestines are governed by the

a. autonomic nervous system.
b. somatic nervous system.

e
Which is false regarding the somatic nervous system (SNS)?

a. The SNS is under voluntary control.
b. The SNS uses motor and sensory neurons.
c. The SNS innervates skeletal muscle fibers.
d. The SNS is part of both the CNS and the PNS.
e. The SNS is activated by visceral sensory neurons.

b
The knee jerk reflex (when the quadriceps muscles contract after the patellar tendon is tapped) is directed by the

a. autonomic nervous system.
b. somatic nervous system.

a
In an autonomic motor pathway, the first cell in the two-neuron chain is the ______ neuron.

a. preganglionic
b. postganglionic
c. posterior
d. terminal
e. primary

b
Postganglionic axons are

a. myelinated.
b. unmyelinated.
c. sometimes myelinated and sometimes unmyelinated.

b
Motor neurons of the _________ nervous system contain more rapidly conducting axons.

a. autonomic
b. somatic

c
Motor neurons of the autonomic nervous system
a. always excite effector organs.
b. always inhibit effector organs.
c. can either excite or inhibit effector organs.
d. do not excite effector organs but monitor their status of activity.
a
Preganglionic axons of the ANS release

a. acetylcholine.
b. norepinephrine.
c. either acetylcholine or norepinephrine.

b
Which statement accurately compares the motor systems of the somatic nervous system (SNS) and autonomic nervous system (ANS)?

a. Both the SNS and the ANS house their motor neurons in ganglia.
b. The SNS does not have ganglia for its motor neurons but the ANS does.
c. The ANS does not have ganglia for its motor neurons but the SNS does.
d. Neither the SNS nor the ANS houses its motor neurons in ganglia.

c
The circuitry of the autonomic system allows for control in activation. The characteristic that allows a small number of preganglionic cells to stimulate a large number of postganglionic cells is

a. convergence.
b. reverberation.
c. divergence.
d. reciprocal innervation.

a
Many different neurons can stimulate an autonomic ganglion cell simultaneously due to

a. convergence.
b. reciprocity.
c. divergence.
d. reverberation.

d
Which is not an effector innervated by the autonomic nervous system?

a. Cardiac muscle
b. Smooth muscle
c. Glands
d. Skeletal muscle
e. None of the choices is correct.

b
The two divisions of the autonomic nervous system

a. use preganglionic and postganglionic neurons to innervate skeletal muscle.
b. contain autonomic ganglia to house ganglionic neurons.
c. are voluntary.
d. are composed of PNS structures only.
e. function only during sleep.

a
Which division functions to conserve energy and replenish the supply of nutrients?

a. Parasympathetic
b. Somatic
c. Sympathetic

b
Which division functions to increase alertness and direct bodily responses in stressful situations?

a. Parasympathetic
b. Sympathetic

c
The “fight-or-flight” system is the __________ nervous system.

a. parasympathetic
b. somatic
c. sympathetic

b
Which system has more divergence of preganglionic axons?

a. Parasympathetic division
b. Sympathetic division

a
Which system has long preganglionic axons and therefore ganglia that are relatively far from the central nervous system?

a. Parasympathetic nervous system
b. Somatic nervous system
c. Sympathetic nervous system

c
Which system contains short preganglionic axons that branch extensively?

a. Parasympathetic nervous system
b. Somatic nervous system
c. Sympathetic nervous system

a
Which statements are correct concerning the parasympathetic division of the ANS?

a: Contains preganglionic cell bodies in brainstem nuclei
b: Contains preganglionic cell bodies in the lateral horns of the T1-L2 regions
c: Participates in the “fight-or-flight” response
d: Helps maintain homeostasis
e: Contains preganglionic cell bodies in the sacral region of the spinal cord

a. a, d, e
b. a, c, e
c. b, c, d
d. b, c
e. c, d, e

e
The sympathetic division of the ANS has

a. long postganglionic axons.
b. norepinephrine as a transmitter substance.
c. preganglionic neuron cell bodies in the T1-L2 regions of the spinal cord.
d. Two of the choices are correct.
e. All of the choices are correct.

a
Which is not characteristic of the parasympathetic division of the ANS?

a. Long postganglionic axons
b. Long preganglionic axons
c. No rami communicantes
d. Terminal ganglia close to the target organ
e. Craniosacral preganglionic neuron cell bodies

b
Which system engages in mass activation?

a. Parasympathetic nervous system
b. Sympathetic nervous system

b
Limited branching of preganglionic axons allows for

a. mass activation.
b. local and discrete activation.
c. rapid changes in numerous structures at once.

a
Which cranial nerves are associated with the parasympathetic division of the ANS?

a: III
b: IV
c: V
d: VII
e: IX
f: X
g: XII

a. a, d, e, f
b. b, c, d, e
c. a, c, d, g
d. c, d, f, g
e. b, e, f, g

e
The preganglionic axons of CN III extend to the _______ ganglion.

a. pterygopalatine
b. submandibular
c. otic
d. pelvic
e. ciliary

d
The preganglionic axons of CN VII extend to the

a. pterygopalatine ganglion.
b. submandibular ganglion.
c. otic ganglion.
d. pterygopalatine and submandibular ganglia.
e. pterygopalatine, submandibular, and otic ganglia.

a
The glossopharyngeal nerve innervates the

a. parotid salivary gland.
b. large intestine.
c. lacrimal gland.
d. sublingual salivary gland.
e. ciliary muscle.

c
From which part of the CNS do parasympathetic preganglionic axons of CN VII emerge?

a. Mesencephalon
b. Cerebral cortex
c. Pons
d. Lateral horns of the S1 spinal cord segment
e. Lateral horns of the T1 spinal cord segment

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