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a&p (2)
the senses
| Question | Answer |
|---|---|
| Exotropia | Abnormally outward gazed "walleye" |
| Esotropia | Abnormally inward gazed "cross-eyed" |
| Cataract | Gradually developing opacity of the lens, Occurs over 70. Painless, gradual blurring And loss of vision |
| Myopia | Defect in vision so objects can only be seen when very near "Nearsightedness" |
| Hyperopia | Only can see faraway objects "Farsightedness" |
| Choroid | Keeps light from reflecting within the eye. Located under the Sclera; Contains blood vessels that serve the eye tissue |
| Astigmatism | If the cornea develops an abnormal shape, vision becomes blurred |
| Sclera | Maintains the shape of eye. It is the tough outer covering |
| Receptors | Peripheral nerve ending of the sensory nerves |
| Conjunctiva | Mucus membrane; covers anterior Sclera surface of the eye |
| Corneal abrasion | A scratch or trauma to the cornea usually caused by a foreign body in the eye. Vision can be affected in the location and extent of the injury are significant. |
| Conjunctivitis | Caused by inflammation of the Conjunctiva. Goes from one eye to the next; redness and a bloodshot appearance |
| Ptsosis | Dropping upper eyelid. Could be result of a congenital condition, aging, fatty folds or neurological factors |
| Iritis | Inflammation of the iris; causes moderate to severe to light, and small, nonreactive pupils |
| Pinna | aka auricle, fleshy part of external ear, collects sound waves |
| Auricle | aka Pinna |
| Tympanic membrane | ear drum |
| Tinnitus | ringing of the ears |
| Malleus | aka hammer (one of the 3 inner bones of the ear) |
| Incus | aka anvil (one of the 3 inner bones of the ear) |
| Stapes | aka stirrup (one of the 3 inner bones of the ear) |
| Epistaxis | caused by trauma and the usual clot time is between 15-30 minutes; medical term for nose bleed |
| Candidiasis | fungal infection of the mucous membranes of the mouth and throat. Cream color or white patches of exudate on the tongue, mouth or throat that cannot be scraped off |
| Presbycusis | a gradual loss of hearing do to old age |
| Sensorineural | hearing loss that results from nerve transmission failure within the inner ear or the auditory nerve |
| cochlea | coiled portion of bony labyrinth; series of interconnecting chambers in temporal bone; functions in hearing |
| Organ of Corti | located within the cochlear duct; contains receptors for sound; hair cells with hairlike projections |
| semicircular Canals | Maintain equilibrium |
| the middle ear is connected by the? | Eustachian tube |
| external auditory canal | s-shaped tube; passageway from the outside to the ear drum; Contains numerous hairs |
| Refraction | the bending of light rays |
| refractive surfaces in the eye | cornea, aqueous humor, lens, vitreous humor |
| extraocular muscles | they contract or relax to permit movement of the eyeball |
| vitreous humor | maintains the shape of the eyeball |
| aqueous humor | maintain curvature of the cornea and assists in the refraction process |
| what are the 5 senses | sight, hearing, taste, smell, touch |
| general senses | widely distributed in the body |
| special senses | localized in a particular area |
| Chemoreceptors | chemical stimuli (taste buds, sense of smell) |
| Mechanoreceptors | touch and feel pressure (hearing) |
| Nociceptors | pain |
| Thermoreceptors | heat and cold |
| Photoreceptors | detection of energy from light |
| otitis externa | infection of the external auditory canal; may cause pain and hearing loss; swimmer ear |
| otitis media | infection of the middle ear, often associated with respiratory infections; most likely in children and infants |
| accommodation | changing shape of the lens |
Created by:
bpstears
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