Question

module: nervous
topic: structures / type: combination

what structure is highlighted?

a. auricle of ear
b. semicircular canals
c. cochlea
d. tympanic membrane
e. vestibule of ear

Explanation:

Identify the highlighted structure

Using the Auditory System Anatomy knowledge point

• The anatomical diagram shows a cross-section of the human ear, including the outer, middle, and inner ear structures.
• A specific structure in the inner ear is highlighted in a bright green color.
• This snail-shell-shaped (spiral) structure is the cochlea, which is responsible for converting sound vibrations into neural signals.

Match with the multiple-choice options

• Option A (Auricle of ear) refers to the external visible part of the ear.
• Option B (Semicircular canals) refers to the three fluid-filled loops situated above the cochlea, responsible for balance.
• Option C (Cochlea) matches the highlighted green spiral structure.
• Option D (Tympanic membrane) is the eardrum, separating the outer and middle ear.
• Option E (Vestibule of ear) is the central part of the bony labyrinth situated between the cochlea and semicircular canals.

Answer:

• (A) Auricle of ear
• (B) Semicircular canals
• (C) Cochlea (Correct answer)
• (D) Tympanic membrane
• (E) Vestibule of ear