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BIOL 1191 > lab 13 minus obvious shit > Flashcards

lab 13 minus obvious shit Flashcards

(94 cards)

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1
Q

tactile sensation receptors (6)

A

tactile corpuscles
hair root plexuses
nonencapsulated sensory corpuscles
bulbous corpuscles
lamellar corpuscles
free nerve endings

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2
Q

tactiel corpuscles

A

aka meissner corpuscles

found in dermal papillae in hairless skin
- detect touch and low freq vibration

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3
Q

hair root plexuses

A

free nerve endings wrapped around hair follicles

detects movement that disturbs the hairs

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4
Q

nonencapsulated sensory corpuscles

A

free nerve endings contacting stratum basale, tree shaped

detect pressure and continuous touch

numerous in fingers, lips

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5
Q

bulbous corpuscles

A

encapsulated receptors deep in the dermis, ligaments, and tendons

detect stretching and pressure

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6
Q

lamellar corpuscles

A

encapsulated dendrites located in dermis and sub layer

detect high freq vibrations and steady pressure

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7
Q

free nerve endings

A

all areas

aka itch and tickle receptors

detect tickle and itch

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8
Q

tests to test sensations of touch

A

two point test
single hair test

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9
Q

test to test temperature

A

grid temp test

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10
Q

tests to test proprioception

A

circle dot test

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11
Q

olfactory tract

A

formed in olfactory bulb

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12
Q

olfactory bulb contains

A

mitral cells (2nd order neurons of olfaction)

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13
Q

cribriform plate

A

landmark/feature of ethmoid bone

contains olfactory foramina that allows passage of the olfactory nerves

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14
Q

nasal cavity contains

A

olfactory epithelium on top that covers the cribriform plate

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15
Q

olfactory gland and mucus function

A

produce mucus which moistens surface of olfactory epithelium to dissolve odourants so transduction can occur

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16
Q

olfactory sensory neuron part locations (axon, dendrites, cilia, odourant molecule)

A

neuron located in olfactory epithelium

axon - goes through foramina to bulb/mitral cells

dendrite - continues thu olf epi to surface in nasal cavity

cilia - come off of dendrite, site of transduction

odourant molecule - binds to cilia

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17
Q

test to test olfaction

A

clove oil + peppermint oil switch

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18
Q

lingual papillae

A

elevated areas of the tongue with taste buds

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19
Q

gustatory microvilli

A

a hair that projects thru the taste pore at the apical end of a every taste bud

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20
Q

what type of receptor are taste buds?

A

chemoreceptors

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21
Q

3 cranial nerves that transmit sensory info from taste buds to brain

A

vagus, glossopharyngeal, facial

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22
Q

why does plugging the nose affect taste?

A

because odourants cannot reach the olfactory epithelium as easy

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23
Q

lacrimal gland

A

secretes lacrimal fluid which drains into excretory lacrimal ducts that empty tears on the conjunctiva of the eyelid

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24
Q

lacrimal sac

A

tears go from the lacrimal canaliculi to here, then to the nasolacrimal duct

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25
eyelid functions to
protects the eye
26
pupil
where light enters the eye centre black dot
27
iris
coloured portion of the eye regulates amount of light entering the eye thru the pupil by being controlled by zonular fibres
28
sclera
white of the eye gives shape to eye, protects inner parts, serves as attachment site for extraocular muscles
29
pathway of tears
lacrimal gland excretory lacrimal ducts surface of eye lacrimal canaliculi lacrimal sac nasolacrimal duct nasal cavity
30
superior rectus (action and nerve)
looking up, nerve 3
31
inferior rectus (action and nerve)
looking down, nerve 3
32
lateral rectus (action and nerve)
looking side to side (depends which eye), nerve 6
33
medial rectus (action and nerve)
looking side to side, depends which eye nerve 3
34
superior oblique (action and nerve)
rotational stability of eyeballs, nerve 4
35
inferior oblique (action and nerve)
rotational stability of eyeballs, nerve 3
36
ciliary body components
ciliary muscle and ciliary process
37
ciliary body
anterior portion of the choroid, that secretes aqueous humor
38
ciliary muscle
changes shape of the lends by changing the tightness of zonular fibres
39
ciliary process
extend off of ciliary muscle, and zonular fibres extend off of them
40
aqueous humor
watery liquid that nourishes the lens and cornea
41
anterior chamber of the eye
lies between cornea and iris, filled with aqueous humor
42
posterior chamber of the eye
lies behind anterior chamber, behind iris and in front of lens
43
cornea
coating of the iris, focuses light into the retina
44
lens
behind pupil and iris, helps focus images on retina to allow clear vision
45
zonular fibres of the lens
aka suspensory ligaments extend from ciliary processes, and are manipulated by the ciliary muscle to change the lens shape
46
when ciliary muscle contracts:
the zonular fibres are looser, and the lens in wider allows us to focus on close objects
47
when ciliary muscle is relaxed:
the zonular fibres are taught, and the lens is taller and narrow allows us to focus on far objects
48
bulbar conjunctiva
passes form eyelids to surface of eyes, covers sclera cause of bloodshot eyes
49
retina
inner layer of eyeball, beginning of visual pathway
50
choroid
deep to retina, vascularized, nourishes retina, produces melanin that prevents light from scattering
51
macula (eye)
spot on the retina directly behind the lens, contains fovea centralis
52
fovea centralis
small depression in macula that only contains cones
53
optic disc
blind spot, where optic nerve exits the eye
54
posterior segment
between lens and retina, filled with vitreous humor
55
vitreous humor function
holds the retina flush against the choroid
56
posterior segment vs posterior chamber of the eye
segment - between lens and retina - contians vitreous humor chamber - between iris and lens - contians aqueous humor
57
myopic
near sighted
58
hyperopic
farsighted
59
snellen eye chart
part of the vision test
60
astigmatism
irregular curvature of the cornea or lens that makes things blurry or unfocused
61
intrinsic eye muscles
ciliary muscles, iris muscles
62
extrinsic muscles
outer eye muscles like superior rectus, etc
63
auricle parts
helix, lobule
64
helix
rim of auricle/outer ear
65
lobule
ear lobe
66
temporal bone
forms roof of external acoustic meatus
67
external acoustic meatus
ear canal
68
tympanic membrane
eardrum vibrates against malleus
69
auditory ossicles
malleus, incus, stapes
70
auditory ossicles function
transmit and amplify vibrations from teh tympanic membrane to vestibular window
71
vestibular window
aka oval window where stapes fits into the vestibule
72
cochlear window
aka round window directly below oval window, enclosed by a second tympanic membrane
73
auditory tube
aka eustachian tube connects tympanic cavity with nasopharynx, opens during yawning or sneezing to equalize pressure
74
semicircular ducts
detect rotational speed changes located within semicircular canals, connects with utricle of the vestibule
75
semicircular canals
3 loop things, labeled anterior, pos, and lateral
76
ampulla
swollen part of semicircular canals, houses sensory epithelium called crista detects rotational acceleration/decel
77
crista
located in ampulla, contains hair cells for balance, covered by cupula
78
internal auditory canal
where the vestibulocochlear canal enters/exits the ear
79
cochlea
snail thing contains cochlear duct, scala vestibuli and scala tympani
80
cochlear duct
aka scala media located in cochlea, contains endolymph
81
scala vestibuli
channel below cochlear duct (if looking from the non nerve side) filled with perilymph
82
scala tympani
channel above cochlear duct (if looking from non nerve side)
83
vestibular membrane
seperates cochlear duct from scala vestibuli
84
basilar membrane
separates cochlear duct from scala tympani
85
spiral organ
located inside cochlear duct contains receptors for hearing (16k hair cells)
86
tectorial membrane
covers hair cells of spiral organ in cochlear duct
87
vestibule
oval portion of bony labyrinth, behind oval windowu
88
utricle
fat side of ampulla, connects to saccules by small duct helps with balance, orolithic organ
89
saccule
orolithic organ responds to movement in vertical plane
90
macula (ear)
in saccule and utricle thickened regions in them detects speed of head tilt
91
oroliths
dense layer of CO3 crystals that cover the orolithic membranet
92
otoscope
ear looking thing
93
test that tested hearing
auditory localization test
94

BIOL 1191 (30 decks)

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