Special Senses

What is the main function of the lens of the eye?

• Refraction of light to retina

• Impulse reception and transmission

• Maintains the shape of the eyeball and refracts light

• Color vision and night vision

What is the largest structure of the ear?

• Malleus
• Cochlea
• Pinna
• Tympanic membrane

Where would you find cerumen?

• Eustachian tube
• External auditory canal
• Semicircular canals
• Cochlea

What statement about the sense of taste is true?

• Taste is influenced by the sense of smell

• Taste buds are called lacteals

• There are no taste buds in the back of the tongue

• There are two main tastes, sweet and salty

Olfactory receptors can be found:

• on the tongue
• in the nose
• in the ear
• in the skin

Organisms in the throat can travel up the eustachian tube and cause:

• Otosclerosis
• A cerumen plug
• Otitis media
• Meniere's disease

The first line of defense for the eyes is

• Cornea

• Eylids and eyelashes

• Pupil

• Skin

Cones are receptors in the retina that process color vision

• True

• False

Rods are receptors in the retina that help us see when there is limited light

• True

• False

The outer parts of the eye are

• Conjunctiva, sclera, cornea, iris, pupil

• sclera, retina, pupil, aqueous humor

• lens conjunctiva, retina, sclera