Question

___ and ___ are the specific receptors of the vestibular apparatus responsible for the maintenance of the balance of the body and posture.

• A. Saccule; utricle
• B. Saccule; macula
• C. Crista; utricle
• D. Crista; macula

Answer 1

The correct option is D

Crista; macula

The correct option is D.

Explanation of correct option:

1. The crista ampullaris refers to the sensory organ linked to the rotation and is found in the ampullae region of all the semicircular canals in the inner ear. It detects angular deceleration and acceleration.
2. The macula refers to the path of sensory cells which helps in monitoring the position of the head during horizontal acceleration.
3. The saccule and utricle are otolith organs present in the inner ear.

Final answer: Crista and macula are the specific receptors of the vestibular apparatus responsible for the maintenance of the balance of the body and posture.