Question

1. the semi - circular canals are sensitive to

a. pressure
b. low frequency sound
c. high frequency sound
d. body position
use the following graphic to answer question 48.
the human inner ear
note: both q and r are sensory nerves.

1. which description of the sensory nerves of the inner ear is correct?

a. r carries impulses from sound receptors.
b. r carries impulses from motion receptors.
c. q carries impulses from sound receptors.
d. q carries impulses from chemoreceptors.
hint: be able to match the mechanoreceptors, chemoreceptors, photoreceptors, and thermoreceptors with their respective structures, organs.

Explanation:

The semi - circular canals in the inner ear are part of the vestibular system which is responsible for detecting changes in body position and balance. In the inner ear, the cochlea contains sound receptors and the nerve associated with it carries impulses from sound receptors.
For question 47, the semi - circular canals are sensitive to body position. For question 48, the cochlear nerve (usually associated with the structure near the cochlea) carries impulses from sound receptors. In the given options, assuming R is related to the cochlear nerve, it carries impulses from sound receptors.

Answer:

1. D. body position
2. A. R carries impulses from sound receptors.