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Medical Terminology
Orange Module- Nervous System
| Term | Definition |
|---|---|
| accommodation | adjustment of the eye from near to far vision, or vice versa |
| achromatopsia | color blindness |
| afferent nerves | sensory nerves |
| anacusis | without hearing |
| anesthesia | medication that causes a loss of feeling |
| axon | part of the neuron that relays impulses AWAY from the cell body |
| blepharectomy | surgical removal of the eyelids |
| canthi | inner & outer corners of the eye |
| cataracts | opacities that form on the lens of the eye |
| cerebellum | part of the brain which controls movement, posture, & muscle tone |
| cerebrum | largest part of the brain; governs all higher mental processes |
| cerumen | waxy secretion found in the external ear canal |
| cochlea | organ of hearing found in the inner ear |
| concussion | injury to the brain resulting from impact of the brain against the skull |
| conjunctivitis | inflammation of the conjunctiva |
| corectasis | dilation of the pupil |
| cornea | clear, transparent portion of the eye, found over the iris |
| dacryorrhea | discharge of tears |
| dendrite | part of the neuron that relays impulses TOWARD from the cell body |
| efferent nerves | motor nerves |
| emmetropia | correct vision |
| encephalopuncture | surgical puncture into the brain |
| Eustachian tube | tube which equalizes pressure |
| glaucoma | increased intraocular pressure which will eventually cause blindness |
| hemiparesis | partial or incomplete paralysis in one half of the body |
| idiopathic | unknown cause; having no cause |
| iritis | inflammation of the iris |
| lethargy | sluggishness, tiredness, weakness |
| mastoiditis | inflammation of the mastoid process |
| medulla oblongata | portion of the brain which controls respiration, heart rate, & blood pressure |
| meninges | protective covering of the brain & spinal cord |
| meningocele | herniation of the meninges |
| motor nerve | nerve that conducts impulses AWAY from the CNS |
| myelopathy | disease of the spinal cord |
| myringoplasty | surgical repair of the tympanic membrane |
| nerve block | loss of sensation in a localized region |
| neurolysis | destruction of a nerve |
| neuron | functional & structural cell of the nervous system |
| nyctalopia | night blindness |
| olfactory | pertaining to smell |
| ophthalmoplegia | paralysis of the eye |
| ossicles | three tiny bones in the middle ear |
| otalgia | pain in the ear |
| otomycosis | fungal infection of the ear |
| otoplasty | surgical repair of the ear |
| otoscopy | visual examination of the ear |
| paraplegia | paralysis of the lower half of the body |
| pinna (auricle) | external ear structure |
| presbycusis | impairment of hearing in old age |
| presbyopia | loss of elasticity of the lens |
| quadriplegia | paralysis of the trunk & all 4 limbs |
| retinoscopy | visual examination of the retina |
| sclera | outermost layer of the eye; white of the eye |
| sclerectomy | surgical removal of the sclera |
| sclerocorneal | pertaining to the sclera & cornea |
| sensory nerve | nerve that RECEIVES impulses from sense organs |
| strabismus | crossed eyes |
| synapse | space between two neurons |
| tonometry | process of measuring the intraocular pressure to diagnose glaucoma |
| tremor | involuntary tremble or shake |
Created by:
ginaliane
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