A Retina Sclera Choroid C Pigmented layer (a) -Horizontal cell Pigmented layer F Neural В layer Amacrine cell Neural layer G ахons Incoming light Nerve signal response to light through retina Posterior cavity (b) (c) DE LM 250x

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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Question

Review how photoreceptors within the eye detect light and transmit that information to the brain, by identifying each lettered structure in the figure below and answering the questions that follow:

A:
 
B:
 
C:
 
D:
 
E:
 
F:
 
G:
                                          
Which structure responds to color?:
 
Which structure responds to dim light and movement?:
 
Which two structures release neurotransmitters in response to light?:
 
Which structure binds to those neurotransmitters, relays an action potential, and releases a second set of neurotransmitters?:
 
Which structure binds to this second set of neurotransmitters and relays an action potential through the optic nerve to the brain?:
 
Which direction does light travel through the retina? Toward the choroid or away?:
 
Which direction do neural signals travel through the retina? Toward the choroid or away?:
A
Retina
Sclera
Choroid
C
Pigmented
layer
(a)
-Horizontal cell
Pigmented
layer
F
Neural
В
layer
Amacrine cell
Neural
layer
G
ахons
Incoming light
Nerve signal response
to light through retina
Posterior cavity
(b)
(c)
DE
LM 250x
Transcribed Image Text:A Retina Sclera Choroid C Pigmented layer (a) -Horizontal cell Pigmented layer F Neural В layer Amacrine cell Neural layer G ахons Incoming light Nerve signal response to light through retina Posterior cavity (b) (c) DE LM 250x
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