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97 Cards in this Set
- Front
- Back
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Sensation |
conscious awareness of stimuli |
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Accommodation |
the automatic adjustment in the lens to permit retina to focus. |
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somatic senses |
receptors for stimuli from body and element |
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visceral senses |
receptors for stimuli from internal organs |
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mechanoreceptors |
senses movement |
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chemoreceptors |
senses chemicals |
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photoreceptors |
senses light |
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thermoreceptors |
senses temperature |
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nociceptors |
senses pain |
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free nerve endings |
open dendrites |
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name a touch recpector |
pacinian corpuscle |
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proproception |
a way of knowing where a body part is located |
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Bowman's glands |
produce secretion for mucus |
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Basal cells |
regenerating cells |
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lingual papillae |
bumps on the tongue |
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what does microvilli do? |
increase surface area |
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what are the primary tastes |
sweet, sour, salty, umami, bitter |
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palpebra |
eyelids |
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meibomian glands |
located on the base of the eyelid that secrete oil |
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lacrimal caruncle |
flesh part on the inside eye (medial) |
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orbital fat |
cushions the eye into the eye socket |
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levator palpabra superious |
muscle that raises the upper eyelid |
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oribularis oculi |
ring around the eye |
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palpebral conjunctiva |
lines the eyelid |
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ocular conjunctiva |
lines the eyeball |
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lacrimal gland with ducts |
secrete tears |
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what type of gland is the lacrimal gland |
exocrine gland |
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lacrimal canaliculi |
superior and inferior canals |
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lacrimal sac |
sits in lacrimal fossa |
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nasolacrimal duct |
drains into nose passages |
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what are tears purpose? |
to wash the eye |
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what is the process of a tear? |
starts in the lacrimal gland then it goes to the lacrimal canaliculi then it drains to the lacrimal sac and lastly the nasolacrimal duct |
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what is a tunic? |
a layer |
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fibrous tunic contains what? |
the sclera |
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sclera |
the white part of the eye |
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cornea |
the clear part of the eye |
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vascular tunic contain? |
contains blood and lymphatic vessels |
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Iris |
colored part of the eye |
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pupil |
hole in the center of the iris |
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what does the pupil allow? |
light to pass through |
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pupillary constrictor muscle |
constricts the pupil |
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pupillary dilator muscle |
dilates the pupil |
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ciliary body |
controls shape of lens |
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suspensory ligaments |
attach lens to the ciliary body |
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choroid |
rest of the vascular tunic |
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what are the three layers of the eyeball? |
fibrous, vascular and neural tunic |
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what is the neural tunic? |
retina |
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What type of receptors are in the neural layer? |
photoreceptors |
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pigmented part |
absorbs the dark |
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where are photorecptors found? |
in the neural tunic |
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Rods |
are able to detect photoreceptors, only sees black and white and can be activated by light |
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Cons |
detects wave lengths, see color, require lots of light |
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What type of neurons are rods and cons |
bipolar |
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where does the bipolar neurons converge? |
the optic disc |
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Rods contain what pigment? |
rhodopsin |
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what is rhodopsin made of? |
retinal and opsin |
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what activates the rhodopsin? |
light |
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what deactivates rhodopsin? |
the dark |
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macula lutea |
are only cones, no rods |
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what is at the center of the macula lutea? |
the fovea centralis |
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what is the fovea centralis |
the clearest point of vision |
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what type of humor does the anterior chamber have? |
aqueous humor |
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where is the anterior chamber |
from the cornea to the iris |
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what kind of humor does the posterior chamber have? |
aqueous humor |
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what kind of humor does the vitreous chamber have? |
vitreous humor |
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where is the posterior chamber located? |
from the iris to the lens |
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where is the vitreous humor located? |
everything behind the lens |
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what is glaucoma? |
a pressure build up behind the lens |
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what does the lens do? |
refracts light |
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cataracts |
clouding of the lens |
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what is emmetropic? |
normal eyesight |
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myopic |
nearsighted |
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hyperopic |
farsighted |
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Auricle |
the outer ear |
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what does the auricle do? |
collects the sound waves |
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external acoustic meatus |
the ear canal |
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ceruminous gland does what? |
secrete cerumin |
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what separates the outer and middle ear? |
tympanic membrane |
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what does the tympanic membrane do? |
converts sound waves into vibrations |
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what are the three bones of the ear? |
the malleus, the incus and the stapes |
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what does the oval window allow? |
vibrations into the inner ear |
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what does the round window allow? |
vibrations our of the inner ear |
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tensor tympani muscle connects to what? |
the tympanic membrane |
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stapedius muscle connects to what? |
connects to the stapes |
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inner ear has what? |
a bony labyrinth lined on the inside by the membranous labyrinth |
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what is the fluid outside the membranous labyrinth? |
perilymph |
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what is the fluid inside of the membranous labyrinth? |
endolymph |
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how many parts does the bony labyrinth? |
three |
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where does the vestibular duct lead? |
into the spiral |
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where does the tympanic duct lead? |
out of the spiral |
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The semicircular canals contain what? |
semicircular ducts
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where are ampulla? |
at the base of the semicircular canals |
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where are the cristae ampullaris located? |
inside of the ampulla |
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what shape are cristae ampullaris? |
hourglass |
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What are cupula? |
jelly like substance that contains hair receptor cells |
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what does hair receptor cells have? |
sterocilia |
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what are in the saccule and utricle? |
vestibule |
