ears

Question 1

pinna

Answer 1

Sound waves are directed by pinna to the auditory canal, where they strike the tympanum (eardrum), generating vibrations within the middle ear.

Question 2

tympanum

Answer 2

ear drum

Question 3

ossicles

Answer 3

When sound waves push against the tympanum, its vibrations are passed on and amplified by the three neighbouring ossicles (the malleus, incus, and stapes)

Question 4

cochlea

Answer 4

Changes in pressure also stimulate the movement of hair cells within the coiled cochlea (in a section known as the organ of Corti) , generating an action potential within the auditory nerve.

Question 5

auditory nerves

Answer 5

This action potential is carried to the temporal lobes by the auditory nerve, where sound information is processed and interpreted.

Question 6

semicircular canals

Answer 6

Changes in pressure cause waves in the fluid of the semicircular canals, which act to maintain dynamic equilibrium (balance during movement) by triggering the movement of tiny hair cells.

Question 7

Eustachian tube

Answer 7

The Eustachean tube connects to the throat, allowing air pressure to equalize