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CPC Study - Senses

How many layers does the eye have? Name them. 3. Cornea (Outer), Choroid (middle), Retina (Inner).
What is the white of the eye called? Sclera
The cornea is avascular. What is it nourished by? Sclera
Which layer of the eye is the pigment layer? Choroid
Which layer of the eye contains rods and cones? Retina
Rods provide: Night and peripheral vision
Cones Provide: Day and color vision
This is a contiguous layer that covers the front of the sclera and lines the eyelid: Conjunctiva
Where is the lens located? Behind the pupil
What connects the lens to the ciliary body? zonules
What causes the lens to change shape and refract light rays? Ciliary Body Muscles
The two fluids found in the eye are: Aqueous Humor, Vitreous Humor
This liquid is found in front of the lens: Aqueous Humor
This gel-like substance fills the space behind the lens and maintains the shape of the eyeball: Vitreous Humor
This conducts light rays from the eye to the brain: Optic nerve
The Path of a light ray from cornea to cerebral cortex: cornea - anterior chamber - pupil - lens - posterior chamber - retina - optic nerve fibers - optic chiasm - thalamus - cerebral cortex
How many divisions does the ear have? Name them. 3. External, Middle, Inner (Labyrinth).
Where do soundwaves enter the ear? Auricle (Pinna)
What is the tunnel from the auricle to the middle ear called? External auditory canal
Name the ossicles of the middle ear: Malleus, Incus, Stapes
What part of the ear contains the tympanic membrane? Middle Ear
What tube leads from the Middle Ear to the Pharynx? Eustachian Tube
Another name for Inner Ear Labyrinth
What is the auditory receptor area of the inner ear? Organ of Corti
The path of a soundwave from Pinna to Cerebral Cortex: Pinna - External Auditory Canal - Tympanic Membrane - Malleus - Incus - Stapes - Oval Window - Cochlea - Organ of Corti - Auditory Nerve - Cerebral Cortex
Cranial nerve that controls sense of smell: I
Cranial nerves that control sense of taste: VII, IX
What portion of the tongue contains the taste buds? Anterior
What do mechanoreceptors react to? Touch and pressure
Meissner corpuscles react to: Touch
Pacinian corpuscles react to: Pressure
Proprioceptors regulate: Position and orientation
Vestibular nystagmus and vertigo are dysfunctions of these receptors: Proprioceptors
What do thermoreceptors sense? temperature changes
What do nociceptors react to? pain
What does the anterior segment of the eye contain? Lens, orbit, extraocular muscles, eyelid
Apicectomy Excision of a portion of the temporal bone
Astigmatism Condition in which refractive surfaces of the eye are unequal
Aural Atresia Congenital absence of external auditory canal
Blepharitis Inflammation of eyelid
Cataract Opaque covering on or in lens
Chalazion Granuloma around sebaceous gland
Dacryocystitis Blocked, inflamed infection of nasolacrimal duct
Dacryostenosis Narrowing of lacrimal duct
Ectropion Eversion of eyelid (outward sagging)
Entropion Inversion of eyelid (lashes rubbing cornea)
Enucleation Removal of an organ or organs from a body cavity
Episclera Connective covering of sclera
Exenteration Removal of an organ all in one piece
Exophthalmos Protrusion of eyeball
Exostosis Bony growth
Fenestration Creation of a new opening in inner wall of middle ear
Glaucoma Eye diseases characterized by an increase of intraocular pressure causing damage to the optic nerve
Hordeolum Stye (infection of sebaceous gland)
Hyperopia Farsightedness (eyeball too short from back to front)
Keratomalacia Softening of cornea (assc. with Vitamin A deficiency)
Keratoplasty Surgical repair of the cornea
labyrinthitis Inner ear inflammation
Lacrimal related to tears
Mastoidectomy Removal of mastoid bone
Meniere's Disease Condition that causes dizziness, ringing in ears, deafness
Myopia Nearsightedness (eyeball too long from front to back)
Myringotomy Incision into tympanic membrane
Ocular Adnexa Orbit, extraocular muscles, eyelid
Ophthalmoscopy Examination of the interior of the eye using a scope
Funduscopy is another name for: ophthalmoscopy
Otitis Media inflammation of middle ear
What are the two types of otitis media? serous (not purulent), suppurative (purulent)
What are you examining if you are using an otoscope? the ear
Papilledema swelling of optic disc
Ptosis Drooping of upper eyelid
Tarsorrhaphy Suturing of eyelids together
Tinnitus Ringing in the ears
Tympanolysis Freeing of adhesions of the tympanic membrane
Tympanometry Test of the middle ear using air pressure
Tympanostomy Insertion of ventilation tube into tympanum
Uvea Vascular tissue of the choroid, ciliary body, iris
Xanthelasma Yellow plaque on eyelid (lipid disorder)
This is an irregular curvature of refractive surfaces of the eye: Astigmatism
Diplopia Double vision
Amblyopia Dimness of vision w/o organic lesion
What kind of lens is used to treat hyperopia? convex lens
What kind of lens is used to treat Myopia? concave lens
What kind of lens is used to treat astigmatism? cylindrical lens
This is age-related farsightedness: presbyopia
Nystagmus Rapid, involuntary eye movements
The two most common types of nystagmus are: vestibular nystagmus, rhythmic eye movements
Strabismus cross-eyed
Hypotrophia downward deviation of one eye
Hypertrophia upward deviation of one eye
Estrophia one eye turns inward
Exotropia one eye turns outward
Pink Eye (inflammation of conjunctival lining of eyelid or covering of sclera) is also known as: conjunctivitis
Another name for hordeolum stye
Usual cause of hordeolum: Staphylococcus
Keratitis corneal inflammation
What causes keratitis? herpes simplex virus
This is the destruction of fovea centralis: Macular Degeneration
Fovea centralis small pit in the center of the retina
Name the 2 types of macular degeneration: Wet (leaking blood vessels near macula) and Dry (atrophy and degeneration of retinal cells and deposits of drusen)
These are clumps of extracellular waste: drusen
Detached Retina retinal tear - two layers separate from each other
What is the final result of a detached retina? blindness
A scleral buckle is a treatment for: large retinal detachment
Blurring vision and halos around lights are symptoms of: cataracts
This is an accumulation of intraocular aqueous humor: glaucoma
Two types of glaucoma: narrow angle (acute) and chronic
Chronic glaucoma is also known as: wide-angle or open-angle glaucoma
This type of ear infection often occurs in children in combination with URI: otitis media
Otitis Externa infection of external auditory canal and pinna (exterior ear)
Swimmer's Ear is also known as: otitis externa
Three names for hearing loss due to defect of sound-conducting apparatus: conductive hearing loss, transmission hearing loss, conduction deafness
Hearing loss due to a lesion of cochlea or central neural pathways is known as: sensorineural hearing loss
Sensorineural hearing loss is also known as: perception deafness
2 divisions of perception deafness: cochlear, retrocochlear
Presbycusis age-related sensorineural hearing loss
This is the most common cause of vertigo: Meniere's Disease
More common name for idiopathic endolymphatic hydrops Meniere's Disease
Gustatory taste
Created by: dropgallow