Anatomy and Physiology of the Eye Glossary of Terms
The following are health and medical definitions of terms that appear in the Anatomy and Physiology of the Eye article.
Anatomy: The study of human or animal form, by observation or examination of the living be... See the entire definition of AnatomyAnterior: The front, as opposed to the posterior. The anterior surface of the heart is tow... See the entire definition of AnteriorAnterior chamber: The space in the eye that is behind the cornea and in front of the iris. Aqueous humor: In medicine, humor refers to a fluid (or semifluid) substance. Thus, the aq... See the entire definition of Aqueous humorBacteria: Single-celled microorganisms that can exist either as independent (free-living) ... See the entire definition of BacteriaBrain: The portion of the central nervous system that is located within the skull. It func... See the entire definition of BrainCentral vision: A process in which millions of cells change light into nerve signals that ... See the entire definition of Central visionChoroid: In the eye, a thin vascular layer between the sclera and the retina. The choroid ... See the entire definition of ChoroidCiliary body: Part of the eye, the ciliary body is a circular structure just behind the ir... See the entire definition of Ciliary bodyConjunctiva: A thin, clear, moist membrane that coats the inner surfaces of the eyelids (p... See the entire definition of ConjunctivaCornea: The clear front window of the eye, which transmits and focuses light into the eye.... See the entire definition of CorneaDrain: A device for removing fluid from a cavity or wound. A drain is typically a tube or ... See the entire definition of DrainDuct: A walled passageway, such as a lymph duct, that carries fluid from one place to anot... See the entire definition of DuctEyelid: The lid or cover of the eye, a movable fold of skin and muscle that can be closed ... See the entire definition of EyelidFlush: (1) A redness of the skin, typically over the cheeks or neck. A flush is usually ... See the entire definition of Flush
Gland: A group of cells that secrete a substance for use in the body. For example, the thy... See the entire definition of GlandGlaucoma: A common eye condition in which the fluid pressure inside the eyes rises becaus... See the entire definition of GlaucomaHumor: In medicine, a fluid or semifluid substance. For example, the aqueous humor is the ... See the entire definition of HumorIris: The circular, colored curtain of the eye. The opening of the iris forms the pupil. T... See the entire definition of IrisLacrimal: Pertaining to tears. For example, the lacrimal gland is a gland that secretes te... See the entire definition of LacrimalLacrimal gland: A small almond-shaped structure that produces tears and is located just ab... See the entire definition of Lacrimal glandLens: The transparent structure inside the eye that focuses light rays onto the retina. Macula: A macula is a small spot. A macula on the skin is a small flat spot while the macu... See the entire definition of MaculaMuscle: Muscle is the tissue of the body which primarily functions as a source of power. T... See the entire definition of MuscleMuscular: Having to do with the muscles. Also, endowed with above average muscle developme... See the entire definition of MuscularNerve: A bundle of fibers that uses electrical and chemical signals to transmit sensory an... See the entire definition of NerveNose: The external midline projection from the face. The purpose of the nose is to warm, c... See the entire definition of NoseOptic: Having to do with vision. Optic nerve: The optic nerve connects the eye to the brain. The optic nerve carries the... See the entire definition of Optic nerveOptic nerve head: The circular area in the back of the inside of the eye where the optic n... See the entire definition of Optic nerve head
Orbit: In medicine, the bony cavity in which the eyeball sits. Orbital: In anatomy, pertaining to the orbit, the bony cavity that contains the eyeball. Physiology: The study of how living organisms function, including such processes as nutrit... See the entire definition of PhysiologyPosterior: The back or behind, as opposed to the anterior. Posterior chamber: The space in the eye behind the iris and in front of the lens. (The iri... See the entire definition of Posterior chamberPupil: The opening of the iris. The pupil may appear to open (dilate) and close (constrict... See the entire definition of PupilRadiate: To spread out from a central area. For example, sciatic pain may radiate outward ... See the entire definition of RadiateRetina: The retina is the nerve layer that lines the back of the eye, senses light, and c... See the entire definition of RetinaSclera: The tough white outer coat over the eyeball that covers approximately the posterio... See the entire definition of ScleraSkull: The skull is a collection of bones which encase the brain and give form to the hea... See the entire definition of SkullTemple: The area just behind and to the side of the forehead and the eye, above the side o... See the entire definition of TempleVitreous: A clear, jelly-like substance that fills the middle of the eye. Also called the ... See the entire definition of Vitreous
|
WebMD Daily
Get breaking medical news.
From WebMD
Eye Health Resources
Featured Centers
Health Solutions From Our Sponsors
Featured Topics
Medical Dictionary
Pill Identifier on RxList
- quick, easy,
pill identification
Find a Local Pharmacy
- including 24 hour, pharmacies
