Deafness can occur for many reasons. Use your knowledge of the structure of the ear and the process of detecting sound, to propose a mechanism for how arthritis could cause deafness
What will be an ideal response
Arthritis results when synovial joints are damaged and can no longer move freely. The joints between the ossicles, found in the middle ear, are synovial joints. If they became stiff from arthritis and their movements were limited, sound waves striking the tympanic membrane would not be efficiently transferred to the oval window of the cochlea. Without that transmission, the fluid in the cochlea cannot move the hair cells on the organ of Corti. If those hair cells do not move, no impulses relaying information about sound can be generated.
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Which of the following can undergo metabolic conversion to acetyl CoA and enter the citric acid cycle?
A. Fatty acids B. Protein C. Glucose D. All of the choices are correct.
Answer the following statements true (T) or false (F)
1. The yellowish area near the center of the retina is called the fovea centralis. 2. The greatest concentration of rods is found in the macula lutea. 3. Looking directly at an object in bright light would give us greater visual acuity because the light would be focused on the fovea centralis. 4. One of the functions of the fluids in the eye is to focus light. 5. Aqueous humor is the watery fluid in the posterior chamber of the eye.
Water and sodium chloride are examples of inorganic molecules.
Answer the following statement true (T) or false (F)
The involuntary control of breathing originates in the:
A) diencephalon. B) hypothalamus. C) cerebral cortex. D) pons and medulla.