Special Senses(Lymphatic) Flashcards
what are the important parts of the eye?
sclera
cornea
retina
iris
pupil
lens
macula
vitreous humor
the white of the eye or the white outer layer of the eyeball and functions as the supporting wall of the eyeball. Also maintains the shape of the eye and protects is from injuries
sclera
acts as the eye’s outermost lens. It functions like a window that controls and focuses the entry of light into the eye.
Cornea
the cornea contributes between __-__ percent of the eye’s total focusing power.
67-75 percent
a thin layer of tissue that covers approximately 65 percent of the back of the eye, near the optic nerve. Additionally, it converts light from the lens to neural signals and transmit them to the brain for visual recognition.
Retina
the colored part of the eye which helps regulate the amount of light entering the eye.
iris
function is clearly that of controlling the amount of light entering the eye, and hence the light reflex.
pupil
it focuses the light rays that pass through it (and onto the retina) in order to create clear images of objects that are positioned at various distances.
lens
located near the center of the retina, its function is to process sharp, clear, straight-ahead vision.
Macula
is a transparent, colorless, gelatinous mass that fills the space in the eye between the lens and the retina.
vitreous Humor
transparent, colorless, gelatinous mass, flows in and out of the front of your eye, its job is to keep proper ocular pressure (eye pressure) in your eye.
Aqueous humor
external and accessory parts of the eye
eyelids
eyelashes
conjunctiva
lacrimal gland
are thin soft tissue structures that cover and protect the anterior surface of the eyeball.
eyelids
the short hairs that grow along the edge of our eyelids
eyelashes
is a transparent mucous membrane that lines both the inner surface of the eyelids and the anterior surface of the eyeball (except the cornea).
Conjunctiva
two parts of the conjunctiva
bulbar and palpebral
what is bulbar conjunctiva
lines the anterior eye
what is the palpebral conjunctiva
lining the eyelids
situated on lateral end of each eye and produces lacrimal fluid
lacrimal gland
is a clear liquid secreted by the lacrimal glands.
tears
what are the things that are contained in the tears?
dilute salt solution
mucus
antibodies
lysozyme
the organ of hearing and balance.
ears