Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
10th Edition
ISBN: 9780321908599
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 3RQ
A blind spot occurs in the retina where (a) the fovea centralis is located, (b) ganglion cells synapse with bipolar cells, (c) the optic nerve attaches to the retina, (d) rod cells are clustered to form the macula, (e) amacrine cells are located.
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You are watching the stars at night, and you never seem to be looking at the right spot to catch the brightest meteors. Which of the following might explain this?
a)Your fovea contains mostly cones; thus you see dim light especially well when looking right at it.
b)Your peripheral retina contains more rods, which are more sensitive to dim light than cones; thus objects in your peripheral vision appear brighter in dim light situations.
c)Detection of light depends mostly on its color rather than intensity; thus cones play a larger role in detection of light in dim light situations.
d) all of the above.
( well explain the correct answer and type answer).
Which of the following statements are true regarding the fovea centralis of the eye?
A) 100% cones
B) 100% rods
C) 50% rods and 50% cones
D) 0% rods or cones - blind spot
E)located in the central portion of the lens
Chapter 17 Solutions
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
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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- Paralysis of a medial rectus muscle would affect (a) accommodation,(b) refraction, (c) depth perception, (d) pupil constriction.arrow_forward1) The maculae of the utricle and saccule with their embedded otoliths and the semicircular canals _______. A) detect changes in the rate at which the head is moving B) determine what direction a sounds are coming from C) amplify soft sounds to improve hearing D) can only detect motion if the head moves at a constant velocityarrow_forwardAnatomically, what causes a blind spot on the retina?arrow_forward
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