Ch 11 Flashcards
Sensory receptors that are active in bright light and perceive color
Cones
The cone shaped cavity in the skull that houses and protects the eyeball
Orbit
The watery fluid that bathes the iris pupil and lens
Aqueous humor
Sensory receptors that are active in dim light and do not perceive colors
Rods
Produces tears
Lacrimal gland
Carries sensory information from the eye to the brain
Optic nerve
The protective membrane that covers the exposed eyeball
Conjunctiva
The innermost layer of the eye that contains sensory receptors for vision
Retina
The colored portion of the eye that controls the size of the pupil
Iris
The white outermost layer of the eyeball
Sclera
Portion of the sclera at the front of the eye that contains no blood vessels and is transparent
Cornea
The opening in the center of the iris that lets in light
Pupil
Alters the thickness of th lens to help focus light on the retina
Ciliary muscles
A clear disk behind the pupil that focuses light on the retina
Lens
Jelly like fluid that occupies the entire eye cavity behind the lens
Vitreous humor