Inner Ear Components Identification
This question requires identifying structures belonging to the inner ear from the given options.
Anatomy of Ear Parts
- A. Ear drum (Tympanic membrane): Part of the outer ear.
- B. Oval window: The membrane-covered opening that connects the middle ear to the inner ear.
- C. Organ of Corti: Located within the cochlea of the inner ear; the sensory organ for hearing.
- D. Basilar membrane: A membrane within the cochlea (inner ear) that supports the Organ of Corti.
- E. Anvil (Incus): One of the three ossicles in the middle ear.
Identifying Inner Ear Structures
Based on the anatomy:
- The Organ of Corti (C) is located within the inner ear's cochlea.
- The Basilar membrane (D) is also a key component within the cochlea of the inner ear.
- The Ear drum (A) and Anvil (E) are parts of the outer and middle ear, respectively.
- The Oval window (B) is the interface between the middle and inner ear.
Therefore, the structures definitively part of the inner ear from the choices are C and D.
Correct Answer Derivation
The options provided are:
- 1. A & B Only
- 2. C & D Only
- 3. B & C Only
- 4. D & E Only
Since the Organ of Corti (C) and the Basilar membrane (D) are parts of the inner ear, option 2 is the correct choice.