Question

question 85
0.25 pts
gel-like structure embedded with the tips of cochlear hair cells.
options: basilar membrane, tectorial membrane, scala vestibule, scala tympani, tympanic membrane
question 86
0.25 pts
gustatory cells are located in all of the following areas except
options: on the posterior wall of the pharynx, on the fungiform papillae of the anterior tongue, on the apical surface of vallate papillae on the tongue, on the inner surface of the cheeks
question 87
0.25 pts
region of the adrenal cortex that secretes dhea.
options: zona fasiculata, zona glomerulosa, zona reticularis, tuber cinereum, chrommafin cells

Explanation:

Question 85

The tectorial membrane is a gel - like structure in the cochlea that has the tips of cochlear hair cells embedded in it. The basilar membrane is a different structure in the cochlea, the scala vestibule and scala tympani are fluid - filled chambers, and the tympanic membrane is the eardrum, none of which match the description of a gel - like structure with cochlear hair cell tips embedded.

Gustatory cells (taste cells) are found on the posterior wall of the pharynx, on fungiform papillae of the anterior tongue, and on the apical surface of vallate papillae on the tongue. They are not typically located on the inner surface of the cheeks.

The zona reticularis of the adrenal cortex is the region that secretes DHEA (dehydroepiandrosterone). The zona fasciculata secretes glucocorticoids, the zona glomerulosa secretes mineralocorticoids, the tuber cinereum is part of the hypothalamus, and chromaffin cells are in the adrenal medulla, not the cortex, and do not secrete DHEA.

Answer:

B. tectorial membrane

Question 86