271.In the structure shown below, the structure labeled D is responsible
for which of the following?
400 Anatomy, Histology, and Cell Biology
a. Transduction of the sound to a nerve impulse
b. Support of the organ of Corti
c. The characteristic ionic composition of the perilymph
d. Forms the tectorial membrane
e. The characteristic ionic composition of the endolymph
272.Which of the following is the function of the vestibular membrane?
a. Maintain the gradient between the endolymph and the perilymph
b. Maintain communication between the tympanic and vestibular cavities
c. Transmit sound to the oval window
d. Maintain the concentration gradient necessary for sensory transduction
e. Dampen the action of the auditory ossicles
273.Detection of angular acceleration is accomplished by which of the
following structures?
a. Maculae of the utricle and saccule
b. Hair cells of the organ of Corti
c. Cristae ampullaris of the semicircular canals
d. Interdental cells
e. Pillar cells