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biologie > organe de simt > Flashcards

organe de simt Flashcards

1
Q

mucoasa olfactiva superior/inferior

A

superior

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2
Q

mugurii gustativi fata ventrala/dorsala a limbii

A

dorsala

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3
Q

aparatul vestibular-stimulul?

A

deflexiunea

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4
Q

drumul imaginii

A

nervul optic -> fibrele mediale se incruciseaza in chiasma optica -> tractul optic -> lobul occipital

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5
Q

sinus venos scleral !

A
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6
Q

foveea centrala vs macula lutea

A

mijlocul - pata galbena

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7
Q

strat extern al ochiului

A

fibros,rezistent: cornee si sclera-muschii extrinseci

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8
Q

unde se ataseaza m extrinseci

A

sclera

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9
Q

stratul mijlociu al ochiului

A

vascularizat; coroida,iris,corp ciliar

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10
Q

cine secreta umoarea apoasa

A

corpul ciliar

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11
Q

irisul cate straturi de muschi netezi

A

2

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12
Q

din ce e alcatuit cristalinul

A

material proteic fibros

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13
Q

straturile retinei

A

extern: pigmentat - melanina, adera de coroida si absoarbe lumina
intern: 3 straturi de neuroni: langa coroida-receptori, dupa bipolari, dupa multipolari

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14
Q

cate cel cu con

A

6-7 milioane

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15
Q

cate cel cu bastonase

A

120 milioane

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16
Q

unde sunt concentrate celulele cu conuri

A

foveea centrala

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17
Q

opsina

A

proteica, difera

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18
Q

rod

A

deriva din vitamina A, identica

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19
Q

obiect la departeare

A

cristalin aproape plat, muschi relaxat, ligament intins

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20
Q

obiect la apropiere

A

cristalin convex, muschi contractat, eliberarea tensiunii din ligament

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21
Q

camp vizual extern

A

un ochi

22
Q

miopie

A

imaginea se face in fata retinei, pt ca ochi prea lung sau nu se acomodeaza cristalinul => lentile biconcave

23
Q

hipermetropie

A

imaginea se face in spateel retinei, pt ca ochi prea scurt/ cristalin prea plat => lentile biconvexe

24
Q

astigmatism

A

curbura neregulata a corneei / cristalinului => lentile torice

25
Q

discrompatopsie

A

fara cel sensivile la rosu, omul nu face dif intre rosu si verde; femeile poarta boala, dar e mai intalnita la barbati

26
Q

prezbitism

A

de la imbatranire => ochelari de citit

27
Q

pavilionul urechii

A

pinna

28
Q

ciocan

A

malleus

29
Q

nicovala

A

incus

30
Q

scarita

A

stapes

31
Q

scarita

A
32
Q

trompa lui Eustachio

A

tub subtire si lung

33
Q

la altitudini mari

A

aerul coboara in faringe

34
Q

la altitudini mici

A

aerul urca in urechea medie

35
Q

frecventa

A

nr de vibratii ale aerului intr o unitate de timp - cicli/secunda sau hertzi

36
Q

intensitate

A

amplitudine - decibeli

37
Q

timbru

A

armonicele tonale

38
Q

drumul sunetului in urechea interna

A

perilimfa -> membr vestibulara -> endolimfa ->membr tectoria -> organul lui Corti

39
Q

membrana bazilara

A

pe ea este organul lui Corti

40
Q

unde sunt simturile gustului

A

anterior-dulce,sarat, anterolateral-acru, posterolateral-sarat, posterior-amar ; umami

41
Q

ce nervi sunt asociati cu gustul

A

facial si glosofaringian

42
Q

drumul gustului

A

nervii VII si IX -> bulb unde fac sinapsa -> talamus -> lobul parietal

43
Q

drumul mirosului

A

nervul I -> lama ciuruita a osului etmoid -> bulbii olfactivi ->tractul olfactiv ->lob frontal si temporal

44
Q

cate mirosuri
cate substante

A

4000
200

45
Q

receptorii din piele

A

tnl - durere; discurile merkel - tactil; corpusculii meissnr- vibr si pres usoare; corpusculii paicini - vibr si pres puternice

46
Q

unde sunt sapate canalele

A

in osul temporal

47
Q

cu ce se aseamana perilimfa

A

cu LCR

48
Q

cu ce se aseamana endolimfa

A

lichidul interstitial

49
Q

echilibrul dinamic

A

endolimfa din canalele semicirculare act pe cel ciliate din ampule

50
Q

otoliti sau

A

calculi

51
Q

echilibru static

A

schimb poz capului, presiunea pe membr cu otoliti, dupa pe otoliti, dupa cel ciliate

52
Q

cate macule

A

6

biologie (19 decks)

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