PRIN OF ANATOMY & PHYS 16E W/ WILEYPLUS
16th Edition
ISBN: 9781119662730
Author: Tortora
Publisher: WILEY
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Textbook Question
Chapter 17, Problem 12CP
How do receptor potentials arise in photoreceptors?
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Chapter 17 Solutions
PRIN OF ANATOMY & PHYS 16E W/ WILEYPLUS
Ch. 17 - How do basal cells contribute to olfaction?Ch. 17 - What is the sequence of events from the binding of...Ch. 17 - How do olfactory receptor cells and gustatory...Ch. 17 - Trace the path of a gustatory stimulus from...Ch. 17 - 5. Compare the olfactory and gustatory' pathways.
Ch. 17 - What is visible light?Ch. 17 - 7. What is the conjunctiva?
Ch. 17 - Why is the lacrimal apparatus important?Ch. 17 - What types of cells make up the neural layer and...Ch. 17 - 10. Why is aqueous humor important?
Ch. 17 - How do photopigments respond to light and recover...Ch. 17 - How do receptor potentials arise in...Ch. 17 - By what pathway do nerve impulses triggered by an...Ch. 17 - 14. How are sound waves transmitted from the...Ch. 17 - How do hair cells in the cochlea and vestibular...Ch. 17 - What is the pathway for auditory impulses from the...Ch. 17 - Compare the functions of the utricle, saccule, and...Ch. 17 - What is the role of vestibular input to the...Ch. 17 - Describe the equilibrium pathways.Ch. 17 - How do the origins of the eyes and ears differ?Ch. 17 - 21. What changes in the eyes and ears are related...Ch. 17 - Mario has experienced damage to his facial nerve....Ch. 17 - Prob. 2CTQCh. 17 - As you help your neighbor put drops in her...
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- Does light striking a photoreceptor results in its depolarization or hypolarization? Why?arrow_forwardGiven 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_forwardExplain Sensory Transduction in Photoreceptors?arrow_forward
- How are Ca2+ channels involved in phototransduction? they cause neurotransmitter release even if no action potentials are produced are not affected by PDE activation in the outer segments when open, they lead to hyperpolarization in photoreceptors in darkness, they do not rely on CGMP levels The density of cones in the retina: is highest where cone outer segments increase in diameter is lowest where retinal blood vessels are absent is drastically less than that of rods in the fovea is indicative of what areas are associated with acuity The recycling of rhodopsin.arrow_forwardDo light pressure receptors adapt quickly?arrow_forwardWhen light strikes photoreceptors, what takes place?arrow_forward
- The correct pathway of activation (by sending neuronal signals) in the retina is bipolar cell - retinal ganglion cell - photoreceptor photoreceptor - retinal ganglion cell - bipolar cell retinal ganglion cell - bipolar cell - photoreceptor photoreceptor - bipolar cell - retinal ganglion cell O bipolar cell - photoreceptor - amacrine cellarrow_forwardDetail the separate mechanisms activated in photoreceptor cells in the presence and in the absence of light.arrow_forwardWhat is the photoreceptor unit of a compound eye? How does this unit adjust to varying amounts of light?arrow_forward
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