Question

The “Middle Ear” includes the:

A. cochlea & vestibular apparatus

B. 3 ear ossicles & the Eustachian canal

C. Vestibulocochlear Nerve and Cochlear Nucleus

D. Thalamus & Temporal lobe of the Cerebral Cortex

E. pinna, external auditory meatus & tympanic membrane

Answer 1

• The middle ear includes the 3 ear ossicles and the eustachian tube.
• The correct answer is option B.
• The 3 ear ossicles are - malleus,incus and stapes.
• The ear ossicles are arranged in the form of chain from tympanic membrane to the oval window.
• The eustachian tube is also known as auditory tube . It is the canal like structure which extends from the middle ear to the nasopharynx.
• The middle ear separates from the external auditory meatus by the tympanic membrane .
• The external ear consists of the - auricle or pinna and external auditory meatus .
• The internal ear consists of the cochlea and vestibular apparatus.