Tesutul muscular Flashcards

1
Q

Din ce este format tesutul muscular?

A

celule= fibre musculare

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2
Q

Ce contint celulele musculare?

A

organite specifice

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3
Q

Cum sunt numite organitele specifice?

A

miofibrile

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4
Q

Care e rolul miofibrilelor? in…

A

in contractia musculara

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5
Q

Muschiul striat scheletic unde se afla?

A

pe schelet

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6
Q

Cum este contractia in muschiul striat scheletic?

A

voluntara

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7
Q

Unde se afla muschiul neted?

A

peretii vaselor de sange in piele in peretii organelor in globii oculari

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8
Q

Cum este contractia in muschul neted?

A

involuntara

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9
Q

Unde se afla muschiul striat de tip cardiac? in…

A

cord

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10
Q

Ce tip de contractie este in muschiul striat de tip cardiac?

A

involuntara automata

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11
Q

Clasificarea muschilor:

A

striat scheletic neted striat de tip cardiac

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12
Q

Cum se numeste membrana in structura fibrei musculare scheletice?

A

sarcolema

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13
Q

Cum se numeste citoplasma in structura fibrei musculare scheletice?

A

sarcoplasma

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14
Q

De la ce vine RE?

A

reticul endoplasmatic

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15
Q

De la ce vine RS?

A

reticul sarcoplasmatic

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16
Q

Ce reprezinta sarcomerul?

A

Unitatea structurala si functionala a fibrei musculare

17
Q

2 proteine contractile:

A

actina si miozina

18
Q

Ce formeaza filamentele de actina si miozina cand se intrepatrund?

A

punti

19
Q

Ce rezulta in urma mecanismului de glisare?

A

scuratrea sarcomerului

20
Q

Mecanismul de glisare:

A

Mecanismul de glisare : filamentele de actină patrund printre cele de miozină, formează punti cu acestea, iar rezultatul este scurtarea sarcomerului.