Anatomy Chapter 8 (part 2)

Inflammation of the conjunctiva

Conjunctivitis

Increased pressure within the eye, which causes pain and possibly blindness

Glaucoma

Eyeball is "too short"

Hyperopia

Nearsightedness

Myopia

Prolonged vitamin A deficiency results in deterioration of the neural retina

Night blindness

Transparent portion of the fibrous layer

cornea

Flexible biconvex crystal-like structure

lens

The biconvex structure that focuses light on the retina is the

lens

Which of these is associated with rods?

night vision

Blind spot

optic disc

The region of the optic nerve lacking photoreceptor cells is known as the

optic disc (blind spot)

Which area of the retina lacks rods and cones and therefore does not detect images

optic disc (blind spot)

Contains millions of photoreceptors

retina

The innermost sensory layer of the eye that contains bipolar cells and ganglion cells is the

retina

Which layer of the eye contains rods and cones?

retina

Which of these is part of the sensory layer of the eye?

retina

"White of the eye"

sclera

The aqueous humor of the eye is reabsorbed into venous blood through the

scleral venous sinus (canal of Schlemm)

What part of the eye is affected by cataracts?

the lens

T or F? We cannot see images formed on the optic disc (blind spot).

true

Type of humor located in the posterior segment

vistreous humor

The gel-like substance housed in the posterior segment of the eye is the

vitreous humor (body)

The gel-like substance that reinforces the eyeball and prevents it from collapsing inward is the

vitreous humor (vitreous body)

T or F? Cones are photoreceptor cells that allow us to see gray tones in dim light.

false

Area of greatest visual acuity

forvea centralis

The greatest visual acuity is housed in the

fovea centralis

What condition results from an abnormally high pressure inside the eye?

glaucoma

Gland that releases tears

lacrimal gland

Blurry images due to unequal curvatures of the cornea or lens

Astigmatism

The three sets of color receptors within the retina are sensitive to wavelengths of visible light that are

blue, green, and red

Which of the following is a sex-linked condition that more often affects males?

color blindness

Type of photoreceptor cell that detects colors

cones