Question:

Which of the following are parts of inner ear?
A. Ear drum
B. Oval window
C. Organ of Corti
D. Basilar membrane
E. Anvil
Choose the correct answer from the options given below:

Show Hint

Remember that the inner ear is composed of the cochlea, vestibule, and semicircular canals. Any structure located inside the cochlea, such as the basilar membrane and the Organ of Corti, belongs to the inner ear.
Updated On: Jul 18, 2026
  • A & amp; B Only
  • C & amp; D Only
  • B & amp; C Only
  • D & amp; E Only
Show Solution
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Question:
The question asks us to identify which of the listed anatomical auditory structures are located inside the inner ear.

Step 2: Detailed Explanation:


• The human ear is anatomically divided into three parts: the outer ear, the middle ear, and the inner ear.

C. Organ of Corti: This is the sensory organ of hearing, located inside the fluid-filled cochlea of the inner ear.

D. Basilar membrane: This is the structural membrane within the cochlea of the inner ear that supports the Organ of Corti and vibrates in response to fluid movement.

A. Ear drum (Tympanic membrane): This membrane separates the outer ear canal from the middle ear cavity.

E. Anvil (Incus): This is one of the three tiny auditory ossicles located in the middle ear cavity.

B. Oval window: This is the membrane-covered opening that serves as the boundary between the middle ear and the inner ear, but is functionally classified as a middle/inner interface rather than an internal structure of the inner ear.

• Thus, only the cochlear structures, the Organ of Corti (C) and the Basilar membrane (D), are located within the inner ear.

Step 3: Final Answer:

The structures that are located within the inner ear are C & amp; D Only.
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