PRIN OF ANATOMY & PHYS 16E 2 SEM ACCESS
16th Edition
ISBN: 9781119704607
Author: Tortora
Publisher: WILEY
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Chapter 17, Problem 13CP
By what pathway do nerve impulses triggered by an object in the nasal half of the visual field of the left eye reach the primary visual area of the cortex?
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Blindsight is the condition in which someone with damage in the primary visual cortex reports that they cannot see an object, but can usually guess what that object is. This means that some visual representation must reach the frontal speech area. What non-thalamic pathway might do that?
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Chapter 17 Solutions
PRIN OF ANATOMY & PHYS 16E 2 SEM ACCESS
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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- How do somatic sensations differ from special senses?arrow_forwardVisual stimuli in the upper-left visual field will be processed in what region of the primary visual cortex? inferior right inferior left superior right superior leftarrow_forwardStarting with the optic nerve, trace the action potential from the right temporal visual field to the visual cortex. What is the possible effect of lesions of the visual pathway?arrow_forward
- Describe the location and function of the ventral stream of visualprocessing areas in the cerebral cortex. Then explain why the dorsal and ventral visual streams are called the “where” and “what” streams, respectively.arrow_forwardWhat type of visual processing occurs in the dorsal and ventral pathways?arrow_forwardAt what location on the retina is visual acuity the best, and what receptor type along with what photoreceptor physical characteristic underlies this best acuity?arrow_forward
- Light rays from an object in the temporal half of the visual field strike which half of the retina?arrow_forwardCompare the architecture of the fovea centralis with more peripheral regions of the retina. How does this architecture relate to visual acuity and sensitivity?arrow_forwardDescribe the pathway from the retina to the primary visual cortex (parts of the system -- retina, optic nerve, optic chiasm, LGN, primary visual cortex). Can you label these on a diagram of the brain?arrow_forward
- Using the terms below, what is the order of the visual pathway elements in order from eye to cortex? 1) Optic radiations 2) lateral geniculate nucleus 3) Optic tract 4) primary visual cortex (V1)/Striate cortex 5) Optic Nervearrow_forwardThe lateral geniculate nuclei (LGN)are 6-layer structures in each hemisphere, which receive input from the retina from the ipsilateral and contralateral eyes. What is true of the layer distribution of the LGN regarding how they receive inputs from the eyes? layers 1, 4 and 6 from contralateral eye layers 4,5 and 6 from ipsilateral eye layers 2,3 and 5 from ipsilateral eye a) and c)arrow_forwardIf a patient suffers visual impairment only in one eye, why must the damage be located in the visual pathway prior to the optic chiasma?arrow_forward
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