Topic 14-15 Part 2: Special Sensory Organs

Hearing receptors of the cochlea are referred to as the:

• semicircular canals

• vestibular nerve

• vestibular apparatus

• organ of Corti

The cochlea is responsible for ___ while the semicircular canals are responsible for ___.

• hearing, balance
• balance, hearing

• smelling, tasting
• touching, tasting

Going from outside in, what is the order of the bony ossicles in the middle ear:

• Stapes, Malleus, Incus
• Malleus, Incus, Stapes
• Incus, Stapes, Malleus
• Malleus, Stapes, Incus

The vestibular apparatus involves which major structures of the inner ear?

• Round window and oval window
• Semicircular canals and otolithic organs
• Eustachian tube and auditory nerve
• Cochlea and tympanic membrane

When your head turns, which structure in the vestibular system moves as a response to endolymph movement?

• Copula and its hairs

• Round window
• Oval window
• Cochlea

Which structures above the gelatenous layer of the kinocelium and stereocilia facilitate movement?

• otoliths

• cupula

• ampulla

• bone

Taste on the anterior 2/3rds of the tongue is transmitted by which cranial nerve?

• Trigeminal nerve (cranial nerve V)
• Glossopharyngeal nerve (cranial nerve IX)
• Facial nerve (cranial nerve VII)
• Vagus nerve (cranial nerve X)

Taste on the posterior 1/3rd of the tongue is received by which cranial nerve?

• Facial nerve (CN VII)
• Olfactory nerve (CN I)
• Vagus nerve (CN X)
• Glossopharyngeal nerve (CN IX)

As you age, your sense of smell improves. True or false?

• Smelling ability remains the same
• True
• False
• Sense of smell decreases with age