Answer to Question 1
Answer: Hair cells are anchored to the basilar membrane. Cilia that project from the inner hair cells are moved by currents produced when the basilar membrane moves relative to the overlying tectorial membrane. The cilia of a hair cell are interconnected by tip links and as these move, the attachment points of the adjacent cilia open a channel to potassium (and calcium), which creates a receptor potential.
Answer to Question 2
Answer: This answer is summarized in Figure 7.9 (page 215). The cochlear nerve projects afferent fibers to the dorsal and ventral cochlear nuclei, then to the superior olivary complex, and then through the lateral lemniscus to the inferior colliculusthen to the thalamic medial geniculate nucleus, and then to the primary auditory cortex.
Movement of sound waves through the human ear.
Responses to Sound Waves
Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity
The thymus, a primary lymphoid organ where T cells mature.
Press-and-flex technique for the pelvic organ reflexes near the medial ankle.
Enlargement of spiral organ (organ of Corti)