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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 |