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the senses

5 special senses vision,hearing,equilibrum,smell,taste
5 general senses preasure,temperature,pain,touch,position
thin membrane that lines the inner surface of eyelid and covers the white of eye conjunctiva
where are tears produced lacrimal glands
function of the nasolacrimal duct drains tears into ducts near the nasal corner of eye
middle,pigmented tunic of the eyeball choroid
which tunic contains the photoreceptors retina
refraction bending of light rays as they pass from one substance to another of diffrent density
transparent portion of the sclera cornea
4 parts of the eye that participate in refraction cornea,aqueous humor,lens,vitreous body
aqueous humor watery fluid that fill most of the eyeball anterior to the lensand helps maintain the slight foward curve of the cornea
vitreous body soft jelly like substance that fills entire space posterer to the lens,maintains shape of eyeball and aids in refraction
2 receptors cell of the eye rods and cones
what kind of light rods function in dim light
fovea centralis tiny depressed area near optic nerve,point of sharpest vision
color blindness results from a lack of what retinal cones
what is the rod pigment rhodopsin
night blindness results from a deficiency of what vitamin vit A
visual impuses travel through the optic nearve to which part of the brain visual center in the occipital cortex of the brain
function of the iris colored or pigmented part of the eye composed of two sets of muscle fibers, governs the size of the central opening
is iris extrinsic or intrinsic intrinsic
name of the extrinsic eye muscle that circles the bottom of the eyeball inferior oblique
prebyopia loss of visual accommodation that occurs w age,leading to farsightedness
2 sensory nerves that supply the eye optic nerve,ophthalmic branch of the trigeminal nerve
optic nerve carried visual impulses from the retinal rods and cone to the brain
ophthalmic branch of trigeminal nerve carried impulses of pain,touch,and temp from the eye and surrounding parts of the brain
optic disk blind spot
nerve that supplies almost all extrinsic eye muscles oculomotor nerve
hyperopia farsightedness,abnormally short eyeball
astigmatism caused by irregularity in the curvature of the cornea or the lens
scientific term for pinkeye acute conjunctivitis
what is the opacity of the lens called cataract
glaucoma condition characterized by excess pearsure of the aqueous humor
visible external portion of the ear pinna(auricle)
where is wax pruduced external auditory canal
common name for tympanic membrane eardrum
2 parts of the ear that the tympanic membrane seperate external auditoy canal,middle ear cavity
name for the 3 small bones in the middle ear ossicles
which of the occicles come in contact with the tympanic membrane malleus
what does the eustachian tube connect middle ear cavity and throat/pharynx
what kind of vestibule contain equilibrium
coiled division of the inner ear that contains the receptors for hearing cochlea
organ for hearing organ of corti
what form of equilibrium do maculae function in stapes
what are cristae receptor for dynamic equilibrium
what kind of movement do semicircular canals detect body is spinning or moving in diffrent directions
otitis media infection and inflamation of inner ear cavity
common name for otitis externa swimmers ear
otosclerosis a heredity bone disorder that prevents normal vibration of the stapes
which part of the tounge are sweet taste most acutely experienced tip of the tounge
the interpretation of smell is closely related to what other sence sense of taiste
proprioceptors sensory receptor that aids in judging body position and changes in position,located in muscles, joints and tendons
where are the receptors for pain free nerve endings
analgesics a drug that relieves pain
endorphins released naturally from certain regions of the brain and are associated with the control of pain
sensory adaption gradual loss of sensation when sensory receptors are exposed to continuous stimulation
structers that protect the eye skull bones of the eye orbit,upper and lower eyelids
rods dim light
cones bright light, sharp image
3 divisions of the ear outer,middle,inner
presbycusis slowly progressive loss that often accompanies aging
taiste tounge
smell epithelium of the superior region of the nasal cavity
strabismus divation of the eye that resuls from lack of coordination of the eyeball muscles
cones are located in the back of the eye
3 colors absorbed by cones red,green,blue
how do we see colors like orange and purple range of color, each type of cone overlaps
what happens in the cone of colorblind people some cones can simply not see color
2 organs that are the bodys organ detectors eyes,ears
3 organs of balance or equilibrium semicircular canals,utricle,saccule
enucleation removal of eyeball
ophthalmia neonatorum acute infection of a new born
trachoma acute eye infection caused by clamdia
retinal detachment retina seperates from underlying layer of th eye
strabismus deviation of the eye resulting in lack eye eyeball muscle coordiantion
Created by: cornejo