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37 Cards in this Set
- Front
- Back
general sense organs
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sense organs that are widely distributed throughout the body and sense stimuli such as pain & touch
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special sense organs
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responsible for for the special senses of smell,taste, visionand equilibrium
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sclera
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a tough, fibrous layer of the eye that is "white" on its frontal surface
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cornea
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another part of the frontal sclera, referred to as the window of the eye
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iris
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colored part of the eye
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what happens to the sclera when a person has a dysfunction with the liver or gallbladder
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turns yellow, ecteric
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conjuctiva
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mucous mambrane that lines the yeylidsand covers the frontal part of the sclera
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lacrimal gland
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keeps the conjunctiva moist by tears
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choroid
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middle layer of the eye, wich has dark pigment to prevent scattering of incoming light
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pupil
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doughnut shaped hole in the center of the iris
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retina
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the inermost layer of the eye
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lens
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directly behind the pupil
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ciliary muscle
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it distort the lens to allow it to focuson objects near and far
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caract
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condition that causesthe lens to become cloudy and less transparant due to aging and uv light
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photoreceptors
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detects changes in light and relay the info. to bipoplar neurons
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the 3 types of cone sensewich 3 colors
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red
blue green |
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aqueous humor
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watery substance in front of the lens that is constantly being formed drained and replaced
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glaucoma
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disruption of circulation can cause a pressure build-up resulting in blindness
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vitreous humor
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jellylike substance behind the lens, filling the globe of the eye
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where is the blind spot of the retina
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where the optic nerve is
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why do we have 2 eyes
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to offset blindspot and for depth reception
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where is the visual info sent in the brain for interpretation?
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the occipital region
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what happens if the retina dettaches from the choroid layer
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i
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2 main fuctions of the ear
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hear
balance |
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mechano receptors
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receptors in the ear that senses vibration and fluid movements
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medical terms for the ears
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pinna or auricle
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tympanic mambrane
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-(eardrum)is aproximately 1" in length
-it separates the external and middle ear |
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middle ear
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-located in small cavity, just inside the temporal bone
-houses 3 hearing bones: -hammer-anvil-stirrup |
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what is otitis media?
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inflamation of the middle ear
(swimmmer's ear) |
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the_____________canals are 3 rings that are at right-angles to eachother
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semicircular
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hearing is sensed it the ?
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acoplia
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(taste) made up of approximately 10,000 receptors categorized as _________ receptors on the tongue
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chemo receptors
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for main senes of taste
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-sweet
-salt -sour -bitter |
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smell receptors are categorized as?
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chemo-receptors
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Specialized receptors found near the point of junction between tendons and muscles are called
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proprioceptors
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Cones are densely concentrated in the
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fovea centralis
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As people grow older, they tend to become farsighted. This condition is called
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hyperopia
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