Match each structure of the ear to its corresponding function or description.
-appendage on the side of the head; also called the pinna
A)organ of Corti
B)tympanic membrane
C)eustachian tube
D)stapes
E)semicircular canal
F)cochlea
G)malleus
H)auricle
I)perilymph
J)endolymph

Question

Quizplus · Accepted Answer

The structure described is the auricle, also known as the pinna. Its function is to collect and direct sounds towards the ear canal.

Answer: B
 The tympanic membrane, also called the eardrum, vibrates in response to sound waves and transmits them to the middle ear.

Answer: C
 The eustachian tube connects the middle ear to the back of the nose and throat. It helps regulate air pressure in the middle ear and drain fluids.

Answer: G
 The malleus, also known as the hammer, is a tiny bone in the middle ear that transmits vibrations from the eardrum to the other ossicles.

Answer: F
 The cochlea is a snail-shaped structure in the inner ear that contains the organ of Corti. It converts sound vibrations into electrical impulses that are sent to the brain.

Answer: D
 The stapes, also called the stirrup, is the smallest bone in the human body. It transmits vibrations from the other ossicles to the inner ear.

Answer: A
 The organ of Corti is a structure in the cochlea that contains sensory cells called hair cells. These cells convert sound vibrations into electrical signals that are transmitted to the brain.

Answer: E
 The semicircular canals are three fluid-filled structures in the inner ear that help maintain balance and orientation. They detect changes in head position and movement.

Answer: I
 Perilymph is a fluid that fills the space between the two membranes of the inner ear. It helps transmit sound vibrations and maintain proper pressure in the ear.

Answer: J
 Endolymph is a fluid that fills the cochlea and other structures in the inner ear. It helps transmit electrical signals from the hair cells to the brain.

Match Each Structure of the Ear to Its Corresponding Function