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Chapter 8 Vocabulary
Special Senses
| Term | Definition |
|---|---|
| Anosmias | an olfactory disorder; loss of chemical senses (taste & smell) |
| Auricle | the visible part of the ear that resides outside of the head |
| Bitter Receptors | stimulated by alkaloids; found in the back of the tongue |
| Blind Spot (Optic Disc) | site where optic nerve leaves the eyeball; light from an object focuses on optic disc and disappears from view |
| Cataract | partial or complete loss of transparency of the crystalline lens of the eye |
| Cerumen | earwax |
| Chemoreceptors | receptors sensitive to various chemicals in solution |
| Choroid | the pigmented nutritive layer of the eye |
| Conjunctivitis | inflammation of the thin mucous membrane lining the eyelids and anterior surface of eyeball |
| Cornea | the transparent anterior portion of the eyeball |
| Deafness | hearing loss |
| Glaucoma | an abnormal increase of the pressure within the eye |
| Gustatory Cells | chemoreceptors (taste cell); occupy the central portion of the bud |
| Iris | the pigmented, involuntary muscle that acts as the diaphragm of the eye |
| Lens | the elastic, doubly convex structure in the eye that focuses the light entering the eye on the retina |
| Mechanoreceptors | receptors sensitive to mechanical pressures such as touch, sound, or contractions |
| Meniere's Syndrome | serious pathology of the inner ear; progressive deafness; causes ringing sound in ear, vertigo, and nausea |
| Olfactory Auras | olfactory hallucinations; mimicry of sense of smell |
| Ophthalmia Neonatorum | form of conjunctivitis contracted by new borns during delivery |
| Otitis Media | inflammation of the middle ear; eardrum bulges and often becomes inflamed; can result from a sore throat |
| Pinkeye | infectious form of conjunctivitis; caused by bacteria or viruses |
| Presbycusis | type of sensorineural deafness that occurs with old age caused by the deterioration of the spiral organ of Corti leads to loss of ability to hear high tones and speech sounds |
| Pupil | an opening in the center of the iris through which light enters the eye |
| Salty Receptors | stimulated by metal ions (inorganic salts); found on the tip of the togue |
| Sclera | the firm white fibrous outer layer of the eyeball; protects and maintains eyeball shape |
| Sour Receptors | stimulated by acids; found half wayback on the tounge |
| Strabismus | lazy eye; weakness of the external eye muscles |
| Sweet Receptors | stimulated by many substances; found in the front area of the tongue |
| Tympanic Membrane | the eardrum |
| Umami | elicited by glutamate which causes the taste of bee; discovered by the Japenese |
| Vertigo | sensation of spinning |
Created by:
Cway
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