Grant is a College who loves to listen to very loud music. When is mother asks him to turn down the music down, Grant usually puts on his headphones instead of actually turning down the volume. During summer vacation Grant and his friends attended many concerts at the Hard Rock Café. One morning after an awesome concert, Grant did not wake up when his mother knocked on the door. He still did not wake up. Finally Grant opened the door when his mother clearly shrilled "Wake Up". Grant told his Mom that he did not hear her knock, but did hear her yell. Did Grant really not hear her knock or was he just trying to get more sleep. Answer the Following Questions in order: Number each response. The submission must be in APA format. 1. The ear is composed of a series of transducers that convert air waves (vibrations) into nerve impulses that the brain interprets as sounds. (2pt)
a. What is the amplitude of the sound wave that represents hearing?
b. What is the frequency or the wavelength of the sound wave for human hearing?
2. What cranial nerve associated with the ear? Describe its anatomy & physiology. (2pts)
3. The ear is divided into three regions: outer, middle, and inner. Name the structures in each region and describe how each structure functions to convert vibrations in the air into messages that the brain interprets as sound. (9pts)
4. The ear contains 2 types of fluid. Name and identify the location of these two fluids. (2pts)
5. Grant says that he no longer hears the base guitar rhythm tracks on his MP3 player. (2pts)
a. What part of the cochlear duct appears to be damaged?
b. Why do you not suspect damage to the tympanic membrane? Case Study: Special Senses22
6. At one concert Grant and his friends dance and spun one another around until they felt dizzy. (4pt)
a. Describe static equilibrium.
b. What part of the ear detects static equilibrium?
c. Describe dynamic equilibriumd. What part of the ear detects dynamic equilibrium?
7. During the flight back to college, Grant experienced excruciating pain in his ears. Upon request the flight attendant brought him chewing gum to relieve the pain. Grant was surprised that chewing the gum relieved the pain. (4pt)
a. What caused Grant’s pain?
b. Was Grant’s pain related to the earlier problem? Explain.
c. Explain why chewing the gum relieved the ear pain?
d. Why would a child with ear tubes NOT suffer from ear pain during a flight in a pressurized air craft cabin.