Question

question 21 (4 points) eardrum vibrations are transmitted to the cochlea by piston consisting of protruding hair cells the basilar membrane the hammer, anvil, and stirrup bipolar and ganglion cells question 22 (4 points) saved the cochlea is a fluid - filled tube in which sound waves trigger nerve impulses fluid - filled tube that provides a sense of upright body position fluid - filled tube that provides a sense of body movement set of three tiny bones that amplify the vibrations of the eardrum question 23 (4 points)

Explanation:

For Question 21, the hammer (malleus), anvil (incus), and stirrup (stapes) are the three - small bones in the middle ear that transmit eardrum vibrations to the cochlea. For Question 22, the cochlea is a fluid - filled tube in the inner ear where sound waves trigger nerve impulses.

Answer:

Question 21: C. The hammer, anvil, and stirrup
Question 22: A. Fluid - filled tube in which sound waves trigger nerve impulses