Ear Anatomy Quizizz

C

What is the lining of the mastoid air cells continuous with?

A. The lining of the mastoid process

B. The lining of the pharyngotympanic tube

C. The lining of the middle ear

Vertical acceleration

What does the saccule primarily sense?

A.

Where is the labyrinth located in the ear?

A. In the petrous portion of the temporal bone

B. In the frontal bone

C. In the occipital bone

D. In the parietal bone

Temporal Bone

What bone comprises the inner 2/3rd of the EAC?

CN IX

A 5 y/o female c/o severe pain from her right ear due to an acute otitis media (middle ear infection). which of the following nerves is most likely responsible for carrying the sensation of pain from the tympanic membrane?

Tensor tympani

Which muscle is attached to the neck of the malleus?

Christa amullaris

What is the name of the structure that contains the hair cells in the semicircular canal ampulla?

Semicircular Canals

Which structures in the inner ear sense rotational acceleration?

Mechanoreceptors

What type of receptors are cochlear hair cells?

C

When does the Eustachian Tube briefly open?

A. When a person sneezes

B. When a person coughs

C. When a person swallows or yawns

D. When a person breathes deeply

CN IX (glossopharyngeal)

Which nerve innervates the Eustachian Tube, Middle Ear, and Mastoid area?

Cochlear Duct (Scala media)

Which chamber of the cochlea contains the Organ of Corti?

Perilymph fluid (low K+)

What type of fluid is the bony portion of the labyrinth filled with?

B

What is the tegmen tympani?

A. The opening from the middle ear to the mastoid antrum

B. A thin plate of bone separating the middle cranial fossa from the mastoid antrum

C. A mucus membrane lining the mastoid air cells

D. A collection of air-filled spaces in the mastoid antrum

Senses horizontal acceleration

What is the function of the utricle?

Endolymph fluid (high K+)

What type of fluid is the membranous portion of the labyrinth filled with?

D.

What is the function of the Eustachian tube?

A. It helps with hearing by transmitting sound waves

B. It connects the middle ear to the inner ear

C. It is responsible for the sense of balance

D. It balances the pressure between the middle ear and the environment

Stapedius

A patient with a facial nerve paralysis suffers from reduced ability to dampen loud noises because of denervation of the:

D.

What is the Aditus to Mastoid Antrum?

A. A bone separating the middle ear from the mastoid antrum

B. A collection of air-filled spaces in the mastoid antrum

C. A mucus membrane lining the mastoid air cells

D. An opening from the middle ear to mastoid antrum

Outer 1/3rd

Which part of the external auditory canal contains cerumen glands and hair cells?

Oval Window

Where does the stapes footplate sit within the middle ear?