1.Subdivisions and elements of the peripheral nervous system (PNS) includeA) dermatomes.B) the sympathetic chain and peripheral ganglia.C) the special sensory receptors.D) the visceral sensory recepto

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1.Subdivisions and elements of the peripheral nervous system (PNS) include

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A) dermatomes.

B) the sympathetic chain and peripheral ganglia.

C) the special sensory receptors.

D) the visceral sensory receptors.

E) All of the answers are correct.

2.  Axons decussating in the lower portions of the spinal cord pass through the

A) anterior white commissure.

B) gray commissure.

C) posterior white commissure.

D) anterior gray horns.

E) None of the answers are correct.

3 Receptors in the carotid sinus that sense CO2 concentration are.

A) phasic receptors.

B) tonic receptors.

C) mechanoreceptors.

D) tactile receptors.

E) chemoreceptors.4. Taste buds are

A) proprioceptors.

B) mechanoreceptors.

C) chemoreceptors.

D) nociceptors.

E) pressure receptors.

5. The spinothalamic tract is

A) descending.

B) motor.

C) ascending.

D) efferent.

E) transverse.

6. The sensory homunculus is a map that reflects (the)

A) relative size of sensory neurons in the body.

B) number of muscles under the skin.

C) proportion of sensory receptors in various regions of the body.

D) size of sensory units.

E) All of the answers are correct.

7A retroperitoneal structure

A) is encased within the lesser omentum.

B) has only its anterior surface covered by peritoneum.

C) is covered by both the greater and lesser omenta.

D) has greater freedom of movement than an organ enclosed by the mesenteries.

E) None of the answers are correct.

8. Cells associated with the juxtaglomerular apparatus that are important in regulating glomerular blood flow are the

A) filtration slits.

B) mesangial cells.

C) podocytes.

D) fenestrated cells.

E) pyramidal cells.

9  Which of the following apply to the ANS?

A) afferent pathways of the ANS originate at visceral receptors

B) efferent pathways of the ANS connect to visceral effectors

C) it is functionally divided into sympathetic and parasympathetic divisions

D) there are anatomical differences between the sympathetic and parasympathetic divisions

E)  all of the above apply

10 Which of the following best describes the contrast between the cat and human lungs?

A)  the above describes the cat lungs, 5 total

B)  the above describes the human lungs, 7 total

C)  the above describes the human lungs, 5 total

D)  the above describes the human lungs, 5 total.  Cats have 7 lobes total, 3 on each side in addition to a mediastinal lobe 



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