Chapter 13 matching the eye

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Terms in this set (...)

cornea
Anterior extension of the sclera the avascular structure that allows light to enter the eye
Sclera
outermost layer or tunic of the posterior eyeball
Cornea
Called the window of eye because it is the first structure through which light enters the eye
Iris
Colored portion of the eye
Choroid
Middle tonic; has a rich supply of blood and nourishes the retina
lends
The shape of this structure changes in response to contraction and relaxation of the ciliary muscles; it refracts light waves
canal of Schlemm
Venous sinus that drains aqueous humor
Cornea
Contact lenses are placed on the surface
Choroid
Layer that extends anteriorly to form the ciliary body and the iris
Retina
Innermost tunic nervous tissue that contains the photoreceptors
Aqueous humor
The fluid that helps maintain the shape of the anterior cavity
Retina
Layer that contain the rods on the cones
Pupil
Circular opening in the center of the iris
optic disc
blind spot
aqueous humor
Fluid that is formed by the ciliary body and drains the canal of Schlemm
Suspensory ligament
Ciliary muscles attach to these bands of connective tissue that pull on the lens
Conjunctiva
Mucous membrane that lines the inner surface of the eye eyelids and folds back to cover a part of the anterior suface of the eyeball
Retina
Layer that includes the macular lures and five a centralis
Vitreous humor
Gel like substance that fills the posterior cavity
Ciliary body
Structure that secretes aqueous humor and gives rise to intrinsic eye muscles called the ciliary muscle
iris
Compose the muscles that determine the size of the pupil
retina
Layer that sends information along the optic nerve to the occipital lobe
Uvea
The word that includes the chloride, the ciliary muscles and the iris
Viteous humor
Gel-like fluid that gently pushes the retina against the choroid
Choroid
Layer that contains melanocytes to diminish glare as light enters the posterior cavity