Q1. Why does breathing deeply and slowly via the nose help to recognize an odor?

a) More air having the odor is brought to contact with the olfactory epithelium.
b) Impulses originate slowly in the olfactory epithelium.
c) The tissue requires more time in contact with the odor.
d) Threshold for odor detection is high.
e) Receptors in the olfactory epithelium are very specific.

Q2. Sensory structures which detect taste are:

a) Palates.
b) Papillae.
c) Taste buds.
d) Ciliary membranes.
e) Thermo-receptors.

Q3. Some of the thyroid disorders are characterized by a raise in the width of the palpebral fissure. This would be a raise in the distance between:

a) Eyebrows.
b) Eyelashes.
c) Eyelids.
d) Eyes.
e) Lacrimal glands.

Q4. Which of the following cranial nerves innervates an eye muscle?

a) Optic
b) Facial
c) Abducens
d) Trigeminal
e) Vagus

Q5. Blood vessels enter the eye and nerve processes exit the eye at:

a) Optic disc.
b) Macula lutea.
c) Sensory retina.
d) Fovea centralis.     
e) Pupil.