Question

1. Sound waves come into the ear through the external acoustic meatus and hit the tympanic membrane.

True

False

2. The saccule and utricle sense rotational motion.

True

False

3. The bony labyrinth is filled with perilymph and the membraneous labyrinth is filled with endolymph.

True

False

Answer 1

Answer:

1) true

Explanation: External acoustic meatus is the external opening of the ear through which sound enters the outer ear. Then sound waves travel through the external acoustic canal and hit the tympanic membrane lying at the junction of outer ear and middle ear. This tympanic membrane transmit the sound waves to the ear ossicles of the middle ear

2) False

Explanation: Utricle and saccule sense linear motion. Rotational motion is sensed by the semicircular canals

3) True