Final answer:
Stimulation of outer hair cells by motor neurons from the pons leads to increased mobility of the basilar membrane, enhancing auditory sensitivity and selectivity.
Step-by-step explanation:
When the outer hair cells of the spiral organ are stimulated by motor neurons from the pons, this results in an increased mobility of the basilar membrane. The outer hair cells function to fine-tune incoming sound waves and can change length to modulate the response to certain frequencies. When sound waves enter the cochlea, they cause the basilar membrane to vibrate, which in turn affects the hair cells. The brain can send signals back to the cochlea to adjust the length of these outer hair cells, thereby directly altering their mechanical properties and enhancing the sensitivity and selectivity of auditory transduction.
When the outer hair cells of the spiral organ are stimulated by motor neurons from the pons, it results in increased mobility of the basilar membrane. The basilar membrane is a part of the organ of Corti and plays a crucial role in sound transduction. The movement of the basilar membrane helps to fine-tune incoming sound waves and allows for better detection of different frequencies.