EBK ANATOMY & PHYSIOLOGY
5th Edition
ISBN: 9780321888013
Author: Hoehn
Publisher: VST
expand_more
expand_more
format_list_bulleted
Question
Chapter 13, Problem 43RQ
Summary Introduction
To review:
The description of the response of rhodopsin to light stimuli. Also, the final outcome of this cascade of events.
Introduction:
Rhodopsin is a deep purple photopigment present in the rods. It is made up of a light absorbing molecule called retinal, which is a derivative of vitamin A. It combines with opsin protein to form rhodopsin. Rhodopsin is accumulated in dark and undergoes changes in light.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Describe the response of rhodopsin to light stimuli. What is the outcome of this cascade of events?
Eskimos wear a great deal of clothing and have limited exposure to uv light, but do not suffer from Vitamin D deficiency. Why?
A person who has been playing in the snow notices that their fingertips are very pale. why?
Where would you expect to find a high concentration of Merkel discs and other tactile corpuscles? Why?
An old wives' tale says that if you keep hair trimmed at the ends, it will grow faster. Please discuss why this is not true.
Explain why you can scrap your skin but not bleed.
Describe how receptor adaptation works.
Chapter 13 Solutions
EBK ANATOMY & PHYSIOLOGY
Ch. 13 - What are the three levels of sensory integration?Ch. 13 - Prob. 2CYUCh. 13 - Your cortex decodes incoming action potentials...Ch. 13 - Your PNS mostly consists of nerves. What else...Ch. 13 - Youve cut your finger on a broken beaker in your...Ch. 13 - What are tears and what structure secretes them?Ch. 13 - Prob. 7CYUCh. 13 - Prob. 8CYUCh. 13 - Arrange the following in the order that light...Ch. 13 - You have been reading this book text for a while...
Ch. 13 - Prob. 11CYUCh. 13 - For each of the following, indicate whether it...Ch. 13 - Prob. 13CYUCh. 13 - Which part of the visual field would be affected...Ch. 13 - Name the five taste modalities. Name the three...Ch. 13 - Prob. 16CYUCh. 13 - Apart from the bony boundaries, which structure...Ch. 13 - Which structure inside the spiral organ allows us...Ch. 13 - If the brain stem did not receive input from both...Ch. 13 - Prob. 20CYUCh. 13 - Prob. 21CYUCh. 13 - Prob. 22CYUCh. 13 - What is in a nerve besides axons?Ch. 13 - Prob. 24CYUCh. 13 - Name the cranial nerve(s) most involved in each of...Ch. 13 - Prob. 26CYUCh. 13 - After his horse-riding accident, the actor...Ch. 13 - What are varicosities and where would you find...Ch. 13 - Which parts of the nervous system ultimately plan...Ch. 13 - Prob. 30CYUCh. 13 - Prob. 31CYUCh. 13 - Prob. 32CYUCh. 13 - The large onion-shaped receptors that are found...Ch. 13 - Proprioceptors include all of the following except...Ch. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Match the names of the cranial nerves in column B...Ch. 13 - For each of the following muscles or body regions,...Ch. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - The portion of the fibrous layer that is white and...Ch. 13 - Which sequence best describes a normal route for...Ch. 13 - Prob. 11RQCh. 13 - Damage to the medial recti muscles would probably...Ch. 13 - The phenomenon of dark adaptation is best...Ch. 13 - Blockage of the scleral venous sinus might result...Ch. 13 - Nearsightedness is more properly called a. myopia,...Ch. 13 - Of the neurons in the retina, the axons of which...Ch. 13 - Which sequence of reactions occurs when a person...Ch. 13 - The blind spot of the eye is a. where more rods...Ch. 13 - Olfactory tract damage would probably affect your...Ch. 13 - Sensory impulses transmitted over the facial,...Ch. 13 - Taste buds are found on the a. anterior part of...Ch. 13 - Gustatory epithelial cells are stimulated by a....Ch. 13 - Olfactory nerve filaments are found a. in the...Ch. 13 - Conduction of sound from the middle ear to the...Ch. 13 - Which of the following statements does not...Ch. 13 - Pitch is to frequency of sound as loudness is to...Ch. 13 - The structure that allows pressure in the middle...Ch. 13 - Which of the following is important in maintaining...Ch. 13 - Equilibrium receptors that report the position of...Ch. 13 - Which of the following is not a possible cause of...Ch. 13 - Prob. 31RQCh. 13 - Prob. 32RQCh. 13 - List the structural components of the peripheral...Ch. 13 - (a) Define plexus. (b) Indicate the spinal roots...Ch. 13 - What is the homeostatic value of flexor reflexes?Ch. 13 - Prob. 36RQCh. 13 - Explain how a crossed-extensor reflex exemplifies...Ch. 13 - What clinical information can be gained by...Ch. 13 - Prob. 39RQCh. 13 - Where are the olfactory sensory neurons, and why...Ch. 13 - How do rods and cones differ functionally?Ch. 13 - Where is the fovea centralis, and why is it...Ch. 13 - Prob. 43RQCh. 13 - Since there are only three types of cones, how can...Ch. 13 - Prob. 45RQCh. 13 - Central pattern generators (CPGs) are found at the...Ch. 13 - Prob. 47RQCh. 13 - Prob. 1CCSCh. 13 - Prob. 2CCSCh. 13 - Prob. 3CCSCh. 13 - Prob. 4CCSCh. 13 - Prob. 5CCS
Knowledge Booster
Similar questions
- The suprachiasmatic nucleus receives direct input from the retina and enables light dark circles to entrain circadian rhythms. What is the effect on a persons circadian rhythms of sleeping and waking if the retinal axons were somehow disrupted?arrow_forwardColor vision is trichromatic in that 3 primary colors can mix and match all other colors. However, there are 4 unique colors or hues that come in opponent pairs. Name and describe what retinal elements or structures produce trichromacy, compared to what retinal elements or structures produce unique color signals and opponent color pairs?arrow_forwardWhen light strikes a photoreceptor, it reduces the amount of glutamate that it releases. This releases ___ cells from inhibition, allowing them to release more neurotransmitters and excite ___ cells. This produces action potentials that travel down the optic nerve. A) horizontal; amacrine B) amacrine; horizontal C) ganglion; bipolar D) bipolar; ganglionarrow_forward
- The phenomenon of “blindsight” is the ability perform reflexive visual movements such as avoiding objects, despite not being consciously aware that an object was present. Can the phenomenon of blindsight be explained in physiological terms, or is it magic?arrow_forwardWhat are the Effects of light on signaling in ON-pathway ganglion cells and OFF-pathway ganglion cells?arrow_forwardWhich statement about the events of photoreception is false? a) as a rod cell hyperpolarizes, its release of neurotransmitter increases b) there is more Na+ entry into a rod cell in the dark than in the light c) bipolar cells release more neurotransmitter in the light than in the dark d) as a bipolar cell depolarizes, its release of neurotransmitter increases e) when a rod cell releases neurotransmitter the bipolar cell it synapses with hyperpolarizesarrow_forward
- Given these events:(1) Bipolar cells depolarize.(2) Glutamate release from presynaptic terminals of photoreceptorcells decreases.(3) Light strikes photoreceptor cells.(4) Photoreceptor cells are depolarized.(5) Photoreceptor cells are hyperpolarized.Choose the arrangement that lists the correct order of events, startingwith the photoreceptor cells in the resting, nonactivated state.a. 1,2,3,4,5 b. 2,4,3,5,1 c. 3,4,2,5,1 d. 4,3,5,2,1 e. 5,3,4,1,2arrow_forwardReceptor cells that are neurons with sensory dendrites are faster than receptor cells that are separate from neurons. Why is that, and why might that be important in, for example, the sense of touch versus vision?arrow_forwardIf axons from the retina were prevented from showing spontaneous activity during early development, what would be the probable effect on development of the thalamus?arrow_forward
- Give the meaning of the statement, “The idea that all sense organs behave as biological transducers is a unifying concept in sensory physiology.”arrow_forwardWhat does your map of cutaneous sensations tell you about the distribution of sensory receptors in the skin?arrow_forwardDescribe the function of rhodopsin.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning