Fundamentals of Anatomy and Physiology (Package)
10th Edition
ISBN: 9780134566979
Author: Martini
Publisher: PEARSON
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Question
Chapter 17, Problem 13CP
Summary Introduction
To determine:
The effect of deficiency of phosphodiesterase activity in photoreceptors, on the vision of a person.
Introduction:
Phosphodiesterase is the enzyme that breaks the bonds between the phosphate groups. The enzyme is activated when the opsin is activated, transducin molecule acts upon its inactive form. In the cell, the phosphodiesterase catalyses the breakdown of cyclic GMP, that decreases the concentration of cyclic GMP. The lower levels of cyclic GMP induce the closing of the sodium ion channels which causes hyperpolarization of the plasma membrane. This decreases the release of neurotransmitters which sends a signal that the photoreceptor has absorbed a photon.
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Chapter 17 Solutions
Fundamentals of Anatomy and Physiology (Package)
Ch. 17 - Prob. 1CPCh. 17 - Prob. 2CPCh. 17 - Prob. 3CPCh. 17 - Prob. 4CPCh. 17 - If you completely dry the surface of your tongue...Ch. 17 - Prob. 6CPCh. 17 - Prob. 7CPCh. 17 - Prob. 9CPCh. 17 - Prob. 10CPCh. 17 - Prob. 8CP
Ch. 17 - Prob. 11CPCh. 17 - Prob. 12CPCh. 17 - Prob. 13CPCh. 17 - Prob. 14CPCh. 17 - Prob. 15CPCh. 17 - Prob. 16CPCh. 17 - Prob. 1RQCh. 17 - Prob. 2RQCh. 17 - A blind spot occurs in the retina where (a) the...Ch. 17 - Sound waves are convened into mechanical movements...Ch. 17 - The basic receptors in the internal ear are the...Ch. 17 - Prob. 6RQCh. 17 - At sunset, your visual system adapts to (a) fovea...Ch. 17 - Prob. 8RQCh. 17 - The malleus, incus, and stapes are the tiny bones...Ch. 17 - Identify the structures of the external, middle,...Ch. 17 - Prob. 11RQCh. 17 - Prob. 12RQCh. 17 - Prob. 13RQCh. 17 - Prob. 14RQCh. 17 - Prob. 15RQCh. 17 - Prob. 16RQCh. 17 - Prob. 17RQCh. 17 - Prob. 18RQCh. 17 - Prob. 19RQCh. 17 - Prob. 20RQCh. 17 - Prob. 21RQCh. 17 - Prob. 22RQCh. 17 - Prob. 23RQCh. 17 - Prob. 24RQCh. 17 - Prob. 25RQCh. 17 - Prob. 26RQCh. 17 - Prob. 27RQCh. 17 - Prob. 28RQCh. 17 - Prob. 1CCCh. 17 - Prob. 2CC
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- The order in which the cells in the eye process light is __________. A) photoreceptors; ganglion cells; bipolar cells B) ganglion cells; bipolar cells; photoreceptors C) photoreceptors; bipolar cells; ganglion cells D) bipolar cells; photoreceptors; ganglion cellsarrow_forwardName the photosensitive pigment present in the rod cells of the retina.arrow_forward
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