Contraction of the smooth muscle in the ciliary body causes thea. lens to flatten. c. lens to become more spherical.b. pupil to constrict. d. pupil to dilate.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Contraction of the smooth muscle in the ciliary body causes the
a. lens to flatten. c. lens to become more spherical.
b. pupil to constrict. d. pupil to dilate.

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