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Special Senses
The senses of the body like eyes
21
Anatomy
12th Grade
11/28/2012

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Term
Glands
Definition
A cell, a group of cells, or an organ that produces a secretion for use elsewhere in the body or in a body cavity or for elimination from the body
Term
Tarsal Glands
Definition
An oily substance that prevents evaporation of the eye's tear film.
Term
Lacrimal Apparatus:
The Sac
Definition
The Lacrimal Sac also drains the eye of any debris, bacteria, dirt, etc.
Term
Lacrimal Apparatus:
Canailculi
Definition
also known as the lacrimal canals or lacrimal ducts, are the small channels in each eyelid that commence at minute orifices, termed puncta lacrimalia, on the summits of the papillae lacrimales, seen on the margins of the lids at the lateral extremity of the lacus lacrimalis.
Term
Conjunctiva
Definition
The conjunctiva lines the inside of the eyelids and covers the sclera (white part of the eye). It is composed of non-keratinized, stratified squamous epithelium.
Term
Extrinsic eye muscles
Definition
*The lateral rectus muscle is one of the many extrinsic muscles that attach to the eye
*Crainal Nerves
Term
How many cranial nerves are responsible for eye movements?
Definition
Three: (Oculomotor),(Trochlear), and (Abducens).
Term
Eye Ball Wall
=Three Layers
Definition
Sclera
Vascular Layer
Sensory Layer
Term
Sclera *part of eye ball wall*
=Fibrosis layer
Definition
-White connective Tissue
Term
Cornea *Part of eye ball wall*
= Fibrosis Layer
Definition
-The window
-Lots of receptors
-No blood vessels but *easily repaired
Term
Vascular Layer *PART OF EYE BALL WALL*
Definition
Term
oculomotor
Definition
Innervates four of the extrinsic eye muscles
(motor)(eyelid and eyeball movement)
Term
Cone
Definition
Receptor found in the retina important for color vision and detailed sight.
Term
Fovea
Definition
Central part of retina; area of retina with most accurate vision
Term
Iris
Definition
Muscles of eye that control the size of the pupil. Gives color to the eye.
Term
Lens
Definition
Transparent structure in the eye that focuses light on the retina
Term
The 6 eye muscles
Definition
Lateral rectus and medial rectus; Superior rectus and inferior rectus; Superior oblique and inferior oblique
Term
Limbus
Definition
The junction between sclera and cornea
Term
Bulbar conjunctiva
Definition
Below eye, under eyelashes (obicularis muscle)
Term
Palpebral conjunctiva
Definition
Above eye, under eyelashes (obicularis muscle)
Term
Tarsal plates
Definition
Connective tissue within the eyelids
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