Ch. 7.7 Special Senses Key Terms
What does aqueous humor mean?
aqueous humor means a clear, watery fluid that fills the space between the cornea and iris.
What does conjunctiva mean?
conjunctiva means lines the eyelids and covers the front of the eye to provide additional protection and lubrication.
What does lens mean?
lens means a circular structure located behind the pupil and suspended in position by ligaments.
What does refracts mean?
refracts means bends.
What does parkinson's mean?
Parkinson's means a chronic, progressive condition involving degeneration of brain cells, usually in persons over 50 years of age.
What does auditory canal mean?
auditory canal means It leads to a canal, or tube, called the external auditory meatus.
What does cornea mean?
cornea means a circular, transparent part of the front of the sclera.
What does organ of corti mean?
organ of corti means a receptor of sound waves.
What does retina mean?
retina means The innermost layer of the eye.
What are the symptoms?
The symptoms are
tremors,
stiffness, muscular rigidity, a forward-leaning position, a shuffling gait, difficulty in stopping while walking, loss of facial expression, drooling, mood swings and frequent depression, and behavioral changes.
What does auricle mean?
auricle means the outer ear contains the visible part of the ear, sen called the pinna.
What does eustachian tube mean?
eustachian tube means the middle ear is connected to the pharynx, or throat, by a tube.
What does ossicles mean?
ossicles means three small bones.
What does sclera mean?
sclera means The outermost layer is the tough connective tissue.
Does a cure exist?
No a cure does not exist.
What does choroid coat mean?
choroid coat means the middle layer of the eye
What does iris mean?
iris means the colored portion of the eye.
What does pinna mean?
pinna means The outer ear contains the visible part of the ear.
What does semicircular canals mean?
semicircular canals means located in the inner ear.
What drugs are used?
The drugs that are used are levodopa, dopamine agonists, and MAO-B inhibitors are used to relieve the symptoms.
What does cochlea mean?
cochlea means contains delicate, hairlike mechanoreceptor cells, which compose the organ of Corti, a receptor of sound waves.
What does lacrimal glands mean?
lacrimal glands means produce tears, which constantly moisten and cleanse the eye.
What does pupil mean?
pupil means opening in the center of the iris.
What does tympanic membrane mean?
tympanic membrane means Sound waves travel through the auditory canal until they reach the eardrum
What does DBS stand for?
DBS stands for Deep brain stimulation.