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