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specialsense final

special sense week 4 final review

astigmatism defective curvature of the cornea or lens of the eye
hyperopia farsightedness
myopia nearsightedness
presbyopia impaiment of vision due to old age
cornea fibrous transparent layer of clear tissue that extends over the eyeball
sclera tough, white outer coat of the eyeball
choroid middle, vascular layer of the eye
retina light-sensitive nerve cell layer of the eye containing rods and cones
macula yellowish region on the retina lateral to and slightly below the optic disc
fovia centralis contained in macula, tiny pit/depression in the retina; clearest point of vision
rods photorecptor used to see black and white
cones photoreceptors used to see color
cones 6.5 million
rods 120 million
vitreous humor soft, jelly-like material behind the lens; maintains shape of eyeball; postior chamber
aqueous humor fluid produced by the ciliary body and found in anterior chamber; anterior chamber
glaucoma increased intraocular pressure in the aqueous humor
tonometry used to diagnose glaucoma
conjunctiva delicate membrane lining the undersurface of the eyelids and covering the anterior eyeball
conjunctivitis pink eye; infection in the conjunctiva
blephar/o eyelid
palpebr/o eyelid
cycl/o ciliary body
presby/o old age
xer/o dry
diabetic retinopathy retinal effects of diabetes mellitus
macular degeneration progressive damage to the macula of the retina
ciliary body surrounds the lens and connects the choroid and iris
self cleaning ear
pinna/auricle flap of the ear
auditory canal channel that leads from the pinna to the eardrum
middle ear where the sounds waves travel through to hit the membrane
ot/o ear
otitis media ear infection
vistubular cochlear nerve acoustic nerve; cranial nerve #8
semicircular canal passages in the inner ear associated with maintaining equilibrium
semicircular canal connects to what ampula
cochlea snail-shaped spirally wound tube in the inner ear; contains hearing sensitive receptor cells
organ of corti organ of hearing
tympan/o eardrum
myring/o eardrum
perilymph outer part of cochlea
endolymph inner part of cochlea
malleus first ossicle of the middle ear
incus second ossicle of the middle ear
stapes third ossicle of the middle ear
conductive hearing loss hole in the eardrum
neurosensory hearing loss nerve damage
cholesteatoma collection of skin cells and cholestrol in a sac with in the middle ear; errods bones
acoustic neuroma benign tumor airsing from the acoustic vestibulocochlear nerve in brain
meniere disorder in the labyrinth of the inner ear
otosclerosis hardening of the bony tissue of the middle ear
autonomic nervous system nerves that control involuntary body functions of muscles, glands and internal organs
arachnoid membrane middle layer of the 3 meninges that surround brain and spinal cord
astrocytes type of glia cell that transports water and salts from capillaries
cauda equina collection of spinal nerves below the end of the spinal cord
central nervous system brain and spinal cord
dura mater thick, outer most layer of the meninges surrounding and protection the brain and spinal cord
ganglion collection of nerve cell bodies in PNS
glial cell supportive and connective nerve cells that DOES NOT carry nerve impulses
gyri sheet of nerve cells that produces a rounded ridge on the surface of the cerebral cortex
hypothlamus portion of the brain beneath the thalamus; controls sleep, appetite, body temp,
meninges 3 protective membranes that surround the brain and spinal cord
microglial cell phagocyte glial cell that removes waste products from the CNS
nerve macroscopic cord like collection of fibers THAT carry electrical impulses
neuron nerve cell that carries impulses throughout the body
oligodendroglial cell glial cell that forms the myelin sheath covering axons
peripheral nervous system nerves outside the brain and spinal cord; cranial, spinal, autonomic nerves
pia mater thin, delicate inner membrane of the meninges
sulci depression or groove in the surface of the cerebral cortex
thyroid thyroxine(t4), triiodothyronine(t3), calcitonin
adrenal cortex corisol, aldosterone, androgens
pituitary growth hormone(somatropin)GH, Thyroid Stimulating Hormone(TSH), Adrenocorticottropic hormone(ACTH, Follicle-stimulating hormone(FHS), Lutenizing Hormone(LH), Prolactin(PRL)
Pancreas insulin, glucagon
rhytidectomy facelift
otoplasty surgical creation of the external ear
blepharoplasty resection of the eyelid to improve vision of the upper visual field
pedicle graft provide coverage and vascularization to a soft tissue defect
skin graft replace skin that has been lost as result of trauma disease, infection
first-degree burn burn involving only epidermis
second-degree burn damage occurs to both epidermis and dermis
third-degree burn may be electricl, chemical, thermal...permanent damage to skin and tissue
facial augmentaion preformed to give normal contours to chin and cheek; use implants to achieve this
mentoplasty Chin augmentaion
Molar augmentation cheek augmentation
augmentation mammoplasty increase the size/shape of the breast
Transverse rectus abdominis myocutanous Flap...TRAM performed to reconstruct the breast without the use on implants
liposuction remove excess deep fat
panniculectomy(abdominoplasty) remove excess skin and adipose tissue from the abdominal wall
Created by: a1h12