Question

u2t3: topic quiz: ear structure and function

which of these is the tympanic membrane (eardrum)?

ab
bd
c
a
ac
be
d
bc
b
ad
ae

Explanation:

🆕 New Concept Discovered: Ear Anatomy and Function
Identifying structures of the outer, middle, and inner ear.

Step 1: Locate the ear canal and the boundary to the middle ear

The ear canal (labeled B) channels sound waves inward. At the very end of this canal sits a thin, cone-shaped membrane that vibrates when struck by sound waves. This membrane separates the outer ear from the middle ear cavity.

Step 2: Identify the label pointing to the eardrum

Looking closely at the diagram:

• B points to the external auditory canal (ear canal).
• C points directly to the thin, circular membrane at the end of the ear canal, which is the Tympanic Membrane (eardrum).
• D points to the malleus (hammer), one of the tiny middle ear bones attached to the inner side of the eardrum.

Therefore, the letter pointing to the Tympanic Membrane is C.

Answer:

C