Introduction to the ear

This tutorial explores the anatomy of the ear, covering the external, middle, and inner ear structures. It discusses the functions of the ear in hearing and balance, detailing components like the oracle, tympanic membrane, ossicles, and cochlea. The tutorial also highlights the role of the temporal bone and the nerve supply, including the facial and vestibulocochlear nerves, essential for auditory and balance functions.

What is the primary function of the auricle in the outer ear?

• To produce earwax

• To balance air pressure

• To protect the ear canal

• To collect and amplify sound

Which part of the ear is commonly known as the eardrum?

• Stapes

• Auricle

• Tympanic membrane

• Cochlea

What is the role of the tympanic membrane in hearing?

• To balance pressure

• To transmit sound waves to the ossicles

• To produce sound

• To protect the inner ear

Which bone is NOT part of the middle ear ossicles?

• Malleus

• Stapes

• Cochlea

• Incus

What is the function of the Eustachian tube?

• To detect sound frequencies

• To transmit sound to the inner ear

• To equalize pressure between the middle ear and atmosphere

• To produce earwax

Where is the Eustachian tube located?

• In the cochlea

• Between the middle ear and nasopharynx

• In the semicircular canals

• Between the outer ear and middle ear

What is the primary function of the cochlea?

• To balance air pressure

• To detect sound frequencies

• To protect the inner ear

• To produce earwax

Which fluid is found within the bony labyrinth of the inner ear?

• Cerebrospinal fluid

• Blood

• Perilymph

• Endolymph

What is the role of the vestibulocochlear nerve?

• To balance air pressure

• To transmit sound to the brain

• To protect the inner ear

• To produce earwax

Which part of the ear is responsible for balance?

• Semicircular canals

• Cochlea

• Tympanic membrane

• Auricle