Anatomical Structures Labeling Practice

The process of hearing in the inner ear involves:

• Vibrations traveling through the cochlea

• Sound waves being absorbed by the eardrum

• The auditory nerve sending signals directly to the brain

• The outer ear capturing sound waves

How is the inner ear organized? The ________________ portion and the ____________ portion.

• vestibular, cochlear

• auditory, visual

• cerebral, spinal

• optic, olfactory

Which portion is involved with hearing?

• Cerebrum

• Cerebellum

• Temporal lobe

• Frontal lobe

The inner ear communicates with the middle ear through the ________________ and the ________________.

• oval window, round window

• eustachian tube, cochlea

• auditory canal, tympanic membrane

• semicircular canals, vestibule

Identify the three canals of the cochlea.

• Vestibular canal, Tympanic canal, Cochlear duct

• Eustachian tube, Semicircular canals, Cochlear duct

• Auditory canal, Vestibular canal, Tympanic canal

• Cochlear duct, Eustachian tube, Auditory canal

Fill out the table to describe the divisions of the cochlea.

• Scala vestibuli, Scala media, Scala tympani

• Scala anterior, Scala posterior, Scala lateral

• Scala superior, Scala inferior, Scala medial

• Scala proximal, Scala distal, Scala central

______________ is the sensory end organ of hearing and is located on the ______________ membrane in the scala _______________.

• Organ of Corti, basilar, media

• Organ of Corti, tectorial, tympani

• Cochlea, basilar, vestibuli

• Organ of Corti, vestibular, media

Fill out the table to compare and contrast Inner and Outer Hair Cells.

• Inner Hair Cells are primarily responsible for sound transduction, while Outer Hair Cells amplify sound.

• Inner Hair Cells amplify sound, while Outer Hair Cells are primarily responsible for sound transduction.

• Both Inner and Outer Hair Cells have the same function in the auditory system.

• Outer Hair Cells are responsible for sound transduction, while Inner Hair Cells amplify sound.

The hair cells of the Organ of Corti synapse with the ________________

• auditory nerve

• optic nerve

• vagus nerve

• trigeminal nerve

The cochlear nerve is a branch of which cranial nerve?

• vestibulocochlear nerve

• trigeminal nerve

• facial nerve

• glossopharyngeal nerve