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Biologie > Ochiul > Flashcards

Ochiul Flashcards

1
Q

Ce muschi se afla in exteriorul ochiului?

A

muschii extrinseci

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2
Q

De ce tip sunt muschii extrinseci?

A

striati

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3
Q

ce muschi ajuta la acomodarea vizuala?

A

muschii ciliari

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4
Q

de ce tip sunt muschii ciliari?

A

netezi

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5
Q

Ce muschi are irisul?

A

muschi radiari si muschi circulari

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6
Q

Ce rol au muschii ciliari si muscii radiari?

A

rol in reglarea diametrului irisului

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7
Q

Ce se afla in iris?

A

pupila

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8
Q

Ce este pupila?

A

un orificiu

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9
Q

Care sunt straturile ochiului?(de la ext la int)

A

sclerotica, coroida, retina

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10
Q

Ce este sclerotica?

A

Invelisul exterior al ochiului

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11
Q

Ce rol are sclerotica?

A

protectie, invelis protector

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12
Q

Ce rol are coroida?

A

rol nutritiv, ese strabatuta de multe vase de sange

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13
Q

Ce rol are retina?

A

rol in formarea imaginii

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14
Q

Ce contine retina?

A

Celule receptoare vizuale

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15
Q

ce este pata galbena?

A

locul in care se formeaza imaginea

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16
Q

Ce nu contine pata oarba?

A

celule receptoare vizuale

17
Q

Ce prinde muschii ciliari de cristalin?

A

ligamentele suspensoare

18
Q

Care sunt mediile transparente ale ochiului?

A

corneea, umoarea apoasa, cristalinul, corpul vitros

19
Q

Ce celule fotoreceptoare sunt in stratul cu celule fotoreceptoare?

A

celule cu conuri si bastonase

20
Q

La ce vedere ajuta celulele cu conuri?

A

la vederea diurna, colorata

21
Q

La ce vedere ajuta celulele cu bastonase?

A

la cea nocturna, crepusculara, alb-negru

22
Q

Ce contin celulele cu conuri?

A

pigmenti fotosensibili

23
Q

Explicati parcursul luminii:

A

Trece prin mediile transparente(cornee, umoare apoasa, cristalin, corpul vitros) si ajunge la retina unde va determina descompunera pigmentilor fotosensibili si formarea impulsului nervos care este transmis prin sinapse pana la nervul optic si mai apoi in lobul occipital.

Biologie (13 decks)

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