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Multiple Choice
Which structure is located between the outer and middle ear?
A
Cochlea
B
Auricle
C
Tympanic membrane
D
Eustachian tube
Verified step by step guidance
1
Identify the anatomical regions of the ear: The ear is divided into three main parts—outer ear, middle ear, and inner ear. Understanding these divisions is crucial for locating structures.
Define the outer ear: The outer ear includes the auricle (pinna) and the external auditory canal, which collects sound waves and directs them inward.
Define the middle ear: The middle ear contains the tympanic cavity, ossicles (malleus, incus, stapes), and the Eustachian tube, which connects to the nasopharynx to equalize pressure.
Locate the tympanic membrane: The tympanic membrane, also known as the eardrum, is a thin, cone-shaped membrane that separates the outer ear from the middle ear. It vibrates in response to sound waves.
Understand the role of the tympanic membrane: The tympanic membrane acts as a boundary between the outer and middle ear, transmitting sound vibrations to the ossicles in the middle ear for further processing.