Understanding the Ear: Structure and Function

What is the primary function of the pinna in the external ear?

• To protect the tympanic membrane

• To collect sound vibrations

• To produce earwax

• To equalize air pressure

Which part of the ear is derived from the mesoderm?

• External ear

• Middle ear

• Inner ear

• Pinna

What is the role of the malleus in the middle ear?

• To equalize air pressure

• To produce earwax

• To transmit sound waves to the inner ear

• To connect the middle ear to the nasopharynx

Which bone in the middle ear is shaped like a stirrup?

• Columella

• Stapes

• Incus

• Malleus

What is the function of the Eustachian tube?

• To amplify sound waves

• To protect the inner ear

• To equalize air pressure on either side of the tympanum

• To produce earwax