Question

5. The auditory ossicles transmit vibrations from the ____tympanic
membrane_________ to the inner ear_____________.
a) auricle; malleus
b) tympanic membrane; inner ear
c) tympanic membrane; middle ear
d) auricle; inner ear

6) (Fill in) The structures of the cochlea are responsible for ____hearing __________,
whereas the structures of the vestibule and semicircular canals are responsible
for equilibrium and balance______________.

7) The receptors for smell are located in the
a) gustatory mucosa.
b) olfactory epithelium.
c) olfactory fossa.
d) squamous epithelium.

8) Taste buds are located on the __________
a) filiform, fungiform, and circumvallate papillae.
b) filiform, fungiform, and foliate papillae.
c) filiform and circumvallate papillae only.
d) fungiform, foliate, and circumvallate papillae.

9) The disease macular degeneration is characterized by a gradual loss of vision as
a result of degeneration of the macula lutea. Considering the type of cells located
in the macula lutea, which type of vision do you think a sufferer of macular
degeneration would lose? Why?

10) How would the signs and symptoms of macular degeneration differ from its
cause?

11) Explain why infectious otitis media (inflammation of the middle ear) may result in
a simultaneous pharyngitis (inflammation of the throat).

Answer 1

5 .(b) Tympanic membrane, inner ear.

6. I.cochlea contains organ of corti which is recepter organ for hearing.

II. Vestibular apparatus consists of (3 semicircular cannal , sacule and urticle )responsible for balance.

7. (B) olfactory epithelium.

8.(D)fungiform , foliate and circumvallate papillae.

9.Macular degeneration causes loss in the center of the field vision. It happens due to small central portion of retina called macula wears down.

10.Sign and symptom :- partial loss of vision , blurred vision, distorted vision, inability to see in dim light and cause is :- Hereditary, Environmental factors smoking and diet, obesity, nutrient deficiency.

11.Middle ear is connected to nasopharynx( which consists of upper throat and back of nasal cavity) through eustachian tube.So infectious otitis media may results in simultaneous pharyngitis.