Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 3CYU
If a patient suffers visual impairment only in one eye, why must the damage be located in the visual pathway prior to the optic chiasma?
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Chapter 15 Solutions
Human Anatomy & Physiology
Ch. 15.1 - Compare and contrast the general and special...Ch. 15.1 -
2. Which structural type of nerve (spinal,...Ch. 15.2 - 1. Where is the olfactory epithelium located?
Ch. 15.2 - 2. What types of cells make up the olfactory...Ch. 15.2 - Describe the structure of an olfactory neuron.Ch. 15.2 - What happens in an olfactory neuron when an...Ch. 15.2 - How can humans detect such a variety of odors with...Ch. 15.2 - Prob. 6QCCh. 15.3 - Where are taste buds located?Ch. 15.3 - Prob. 2QC
Ch. 15.3 - Prob. 3QCCh. 15.3 - Prob. 4QCCh. 15.3 - Prob. 5QCCh. 15.3 - 6. Which cranial nerves transmit taste sensation...Ch. 15.3 - 7. Which part of the brain is responsible for...Ch. 15.4 - Prob. 1QCCh. 15.4 - Trace the path of tears as they travel from the...Ch. 15.4 - 3. Which two extrinsic eye muscles move the eye...Ch. 15.4 - Prob. 4QCCh. 15.4 - 5. What are the functions of each component of...Ch. 15.4 - Prob. 6QCCh. 15.5 - Prob. 1QCCh. 15.5 - Prob. 2QCCh. 15.5 - What is accommodation?Ch. 15.5 - Prob. 4QCCh. 15.5 - 5. What is the near point of accommodation, and...Ch. 15.5 - How are rods different from cones?Ch. 15.5 - Why are photoreceptors depolarized in the dark?Ch. 15.5 - How do rods hyperpolarize when light strikes them?...Ch. 15.5 - 10. What happens at the optic chiasma? What is...Ch. 15.5 - 11. What type of visual processing occurs in the...Ch. 15.6 - 1. What is the auricle?
Ch. 15.6 - What is the purpose of cerumen?Ch. 15.6 - 3. Where is the tympanic membrane located?
Ch. 15.6 - Prob. 4QCCh. 15.6 - What is the role of the pharyngotympanic tube?Ch. 15.6 - Prob. 6QCCh. 15.6 - What are the functions of the utricle, saccule,...Ch. 15.6 - How are the scala tympani, scala media, and scala...Ch. 15.6 - 8. What is the spiral organ, and where is it...Ch. 15.7 - 1. What physical properties determine the pitch...Ch. 15.7 - 2. What is the range (in hertz) of human...Ch. 15.7 - 3. Why is the force exerted on the oval window...Ch. 15.7 - Prob. 4QCCh. 15.7 - Prob. 5QCCh. 15.7 - Prob. 6QCCh. 15.7 - Prob. 7QCCh. 15.7 - Prob. 8QCCh. 15.8 - How do static and dynamic equilibrium differ?Ch. 15.8 - 2. What role do the utricle and saccule play in...Ch. 15.8 - What role do they play in dynamic equilibrium?Ch. 15.8 - Prob. 4QCCh. 15.8 - 5. What are the three primary areas of the...Ch. 15 - Match the cell type with the correct stimulus....Ch. 15 - 2. The axons of the olfactory nerve terminate in...Ch. 15 - 3. Fill in the blanks: In an olfactory neuron, the...Ch. 15 - The primary olfactory cortex is located in the: a....Ch. 15 - 5. Which of the following statements is true...Ch. 15 - Match the taste with the chemical substance that...Ch. 15 - Prob. 7CYRCh. 15 - Prob. 8CYRCh. 15 - 9. Which cells in the retina are depolarized in...Ch. 15 - Prob. 10CYRCh. 15 - Each of the following statements is false. Correct...Ch. 15 - The axons from the nasal retina in the left eye...Ch. 15 - Mark the following statements as true or false. If...Ch. 15 - Explain how sounds of different frequencies are...Ch. 15 - Prob. 15CYRCh. 15 - Prob. 16CYRCh. 15 - Prob. 17CYRCh. 15 - 18. True or false: Hair cells in the spiral organ...Ch. 15 - 19. Which of the following is not part of the...Ch. 15 - 20. Fill in the blanks: In the ampulla of a...Ch. 15 - Stimuli from the inner ear regarding head movement...Ch. 15 - 1. Explain what would happen to your sense of...Ch. 15 - In which direction would you be unable to move...Ch. 15 - If a patient suffers visual impairment only in one...Ch. 15 - 4. Following a stroke, a patient lost vision in...Ch. 15 - When standing with your eyes closed, why do you...Ch. 15 - Why do you have the sensation that you are still...Ch. 15 - 1. Mr. Spencer suffers loss of taste sensation....Ch. 15 - Prob. 2AYKACh. 15 - Prob. 3AYKACh. 15 - Mrs. Flores is a 45-year-old female who suffered a...Ch. 15 - 6. Your 60-year-old patient, Mr. Guster, has...
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- Larry goes to the doctor complaining that he cant see the right side of the visual field with either eye. Where in the visual signal-processing pathway is Larrys problem occurring?arrow_forwardHow do somatic sensations differ from special senses?arrow_forwardidentify three differences between vision at the fovea and peripheral vision.arrow_forward
- Light rays from an object in the temporal half of the visual field strike which half of the retina?arrow_forwardThree patients have suffered destruction of different portions of their visual pathway. Patient 1 has lost the right optic tract, patient 2 has lost the nerve fibers that cross at the optic chiasm, and patient 3 has lost the left occipital lobe. Draw a picture of what each person would perceive through each eye when looking at a white wall.arrow_forwardPresbyopia is a condition in which a person's ability to adjust to changes in visual acuity diminishes or disappears entirely. Will she still require reading glasses after LASIK to correct her far vision? Explain.arrow_forward
- Presbyopia is a condition in which a person loses part or all of their capacity to adapt to changes in visual acuity. Will she still need reading glasses after having LASIK to fix her far vision? Explain.arrow_forwardWhere will a patient with lesion off the right optic radiation report loss of vision ? Both temporal visual Both nasal visual Left eye Right eye Left visual Right visual.arrow_forwardA patient comes into the ER complaining of loss of vision. When tested, he seems to be missing visual information from both left and right temporal hemifields. What part of the visual pathway is most likely damaged?arrow_forward
- What would cause the greatest loss of visual function—trauma to cranial nerve III, IV, or VI? Why?arrow_forwardDefine far point of visionarrow_forwardMr. Ally went to the eye doctor and complained about dark areas in his vision. He had never noticed it before. There is no pain. What is the diagnosis? Explain the reason behind floaters and dark areas in the visual field. How should the doctor treat Mr. Ally?arrow_forward
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