bp final Flashcards
PART OF THE EYE
The “white” of the eye, or _____ provides a tough outer covering that helps the fluid-filled eyeball maintain its shape. :
sclera,
PART OF THE EYE
Light entering the eye first passes through the outer layer or ______Because the ______is curved, it begins the process of bending or refracting light rays to form an image in the back of the eye.
cornea.
PART OF THE EYE
when cornea is touched the eyelids blink
Corneal reflex;
PART OF THE EYE
After light travels through the cornea and the aqueous humor, it next enters the ____The _____ is actually an opening formed by the circular muscle of the iris,
pupil
PART OF THE EYE
The____adjusts the opening of the pupil in response to the amount of light present in the environment.
iris
PART OF THE EYE
- Disc of muscular tissue surrounding pupil and lies between cornea and lens
- Gives eye its color
iris
PART OF THE EYE
shade eyes and protect from perspiration
Eyebrows:
PART OF THE EYE
a. Protect from foreign bodies
b. Regulate entry of light into eye
c. Distribute tears through blinking
Eyelids
PART OF THE EYE
blinking reflex protects eyes from foreign objects
Eyelashes:
PART OF THE EYE
lubricates eyes
Conjunctiva:
PART OF THE EYE
secrete, distribute, and drain tears to cleanse and moisten eye’s surface
Lacrimal gland, punctum, lacrimal sac, nasolacrimal duct:
PART OF THE EYE
Vital to protecting internal structures
Extraocular Structures
PART OF THE EYE
Transmit visual images and maintain homeostasis of the inner eye
Intraocular Structures:
PART OF THE EYE
1. Space between cornea and iris
2. Filled with aqueous humor
Anterior Chamber
PART OF THE EYE
a neural tissue, an extension of the optic nerve, lies at the innermost surface of the fundus
Retina-
EYE DISORDER
infection of the Zeis gland in the follicle of the lash
Hordeolum (Stye) –
EYE DISORDER
involves the meibomian gland in the lid
Chalazion