NURS 612 Chapter 12: Eyes

Ball: Seidel’s Guide to Physical Examination, 9th Edition



MULTIPLE CHOICE



	1.	Contraction or relaxation of the ciliary body:

a.	allows voluntary blinking.

b.	changes lens thickness.

c.	regulates peripheral vision.

d.	sends light impulses to the brain.

e.	regulates tear production.





ANS:	B

The lens is circularly supported by a framework of fibers from the ciliary body, and contraction or relaxation of this structure results in a change in the thickness...
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