Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 27, Problem 9SQ
Mr. Johnson is becoming slightly deaf. To test his hearing, his doctor holds a vibrating tuning fork tightly against the back of Mr. Johnson’s skull. This sends vibrations through the bones of the skull, setting the fluid in the cochlea in motion. Mr. Johnson can hear the tuning fork this way, but not when it is held away from his skull a few inches from his ear. Where is Mr. Johnson’s hearing problem located? (Explain your answer.)
- a. in the auditory nerve leading to the brain
- b. in the hair cells in the cochlea
- c. in the bones of the middle ear
- d. in the fluid of the cochlea
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Chapter 27 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 27 - A neuron ends in many branches, each with a...Ch. 27 - Prob. 2SQCh. 27 - Your nervous system can be divided into two broad...Ch. 27 - Prob. 4SQCh. 27 - Prob. 5SQCh. 27 - Prob. 6SQCh. 27 - How is an action potential different from a...Ch. 27 - For each of the following senses in humans,...Ch. 27 - Mr. Johnson is becoming slightly deaf. To test his...Ch. 27 - Prob. 10SQ
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- Dizziness and vertigo are symptoms of fluid build up in the cochlea and inner ear. Receptors for hearing are called hair cells and are only stimulated upon movement. Discuss how the increase in fluid can lead to a malfunction in the receptors leading to dizziness and inability to hear well. You will need to discuss the pathway of hearing using the tympanic membrane, malleus, incus, stapes, round window, oval window, hair cells and vestibulocochlear nerve in your response.arrow_forwardMilo and Garfield are two friends who have acquired hearing loss, but the cause of hearing loss in Milo is different from that in Garfield. Milo has a conductive hearing loss. He can hear, but not clearly and loudly. The doctor has told Milo that calcium has built up on the bones in his middle ear interfering with their movements. Garfield has neural hearing loss. The doctor has told Garfield that he cannot hear because the auditory nerve cannot transmit electrical impulses from receptors in his inner ear to his brain. By completing the following tasks, help Milo and Garfield understand how their ear works and why they have difficulty hearing sounds. E. Draw and label a diagram showing the position of the bones in the middle ear. F. Explain the function of the bonesinconducting sound. G. Draw and label a diagram showing the inner ear, the position of receptors and the auditory nerve.arrow_forwardThe utricle and saccule are located in the inner ear. They contain otoliths on top of gel-like fluid and are involved in detecting gravitational equilibrium. Which of the following scenarios does NOT involve the utricle and saccule? Select one: a. Riding in an elevator b. Tilting your head forward c. Abruptly stopping the car at a red light in an intersection d. Spinning clockwise, then spinning counterclockwise to try to get rid of the queasy feelingarrow_forward
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