Senses: Sight

What parts of the eye help to protect the deeper parts?

• The cornea, eyelids, the eye socket, tear ducts, and the sclera.

• Pupil, retina, and lens

• Lens, iris, and optic nerve

• Choroid, retina, and iris

The outer white part of the eye that protects the inner structures

• Cornea

• Iris

• Pupil

• Sclera

What vitamin is important for the sense of sight?

• Vitamins K

• Vitamins D

• Vitamins A

• Vitamins C

What is the bending of light as it changes media called?

• Refraction

• Aqueous humor

• Conjunctiva

• Vitreous humor

True/False: The two types of photoreceptors in the retina are rods and cones

• True

• False

What are the components of the ganglion cell layer?

• Produces ganglia, becomes optic nerve

• Interneurons provide processing

• Photo transduction of light to neural activity

• Rods and cones, photoreceptors

What is the iris?

• A transparent structure behind the pupil that refracts incoming light and focuses it onto the retina. The lens is able to change shape in order to improve the focus.

• The outer white part of the eye that protects the inner structures.

• Diaphragm that controls the amount of light entering the eye.

• The transparent part at the front of the eye that refracts light entering the eye onto the lens.

Overproduction of aqueous humor leads to_________ intraocular pressure

• Increased

• Decreased

What type of muscle does the ciliary body have?

• Fibrous

• Cartilage

• Connective

• Smooth

What is the canal of schlemm?

• Area of transition from the sclera to cornea

• Drainage area for aqueous humor

• Regulates amount of light entering eye by changing size of the pupil

• Regulates fine focus