Question

what structure is highlighted?

a. scala vestibuli
b. basilar membrane
c. spiral ganglion
d. stria vascularis
e. nerve fibers of cochlea

Explanation:

Identify the highlighted structure

Using the Cochlea Histology and Basilar Membrane Structure knowledge points
The histological section shows a cross-section of a turn of the cochlea. The highlighted green structure is the basilar membrane, which forms the floor of the cochlear duct (scala media) and supports the organ of Corti, separating it from the scala tympani below.

Answer:

• (A) Scala vestibuli
• (B) Basilar membrane (Correct answer)
• (C) Spiral ganglion
• (D) Stria vascularis
• (E) Nerve fibers of cochlea