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biologie > sistemul cardiovascular > Flashcards

sistemul cardiovascular Flashcards

1
Q

dimensiunile inimii

A

forma conica
marime de pumn
mai putin de 500g
pozitie oblica

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2
Q

intre ce coaste e inima

A

II si V

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3
Q

miocard (i)

A

in interior o retea de fibre fine de tesut conj ce apartin scheletului fibros conecteaza cel musculare
in jurul valvelor si emergenta vaselor mari - inele de tesut fibros impletite

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4
Q

endocardul

A

strat endotelial peste un strat conjunctiv

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5
Q

pericardita

A

inflamatia pericardului

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6
Q

endocardita

A

inflamatia valvelor

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7
Q

auricula

A

la atrii , o urechiusa care se umple cu sange

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8
Q

in ce se divide arcul aortic

A

-trunchiul brahiocefalic
-artera carotida comuna stanga
-artera subclaviculara stanga

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9
Q

codoaje tendinoase

A

colagen, de culoare albicioasa

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10
Q

prolaps de valva mitrala

A

cand se lezeaza si se misca retrograd

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11
Q

artere cardiace/coronare
vene cardiace/coronare

A

artere coronare
venele cardiace

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12
Q

tromboza coronariana

A

cand arterele coronare sunt obstructionate de cheag de sange

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13
Q

arterele coronare

A

artera coronara dreapta
ramura marginala
ramurca descendenta
ramura circumflexa

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14
Q

venele cardiace

A

sinus coronarian
vena cardiaca mare
posterioara
mijlocie
mica

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15
Q

venele cardiace sunt anterior/posterior si superior/inferior de arterele coronariene

A

anterior si superior

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16
Q

celulele miocardice

A

mai scurte, mai late, mai ramificate, interconectate
-discuri intercalare
-jonctiuni gap
-desmozomi

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17
Q

nodul sinoatrial

A

pacemaker / stimulator cardiac
autoritmicitate
se depolarizeaza de 70-80 ori/min
unda stabileste ritmul sinusal

18
Q

nodul atrioventricular

A

in septul interatrial

19
Q

fasciculul his

A

septul interventricular - format din doua ramuri

20
Q

fibrele pukinje

A

se distribuie in miocardul ventricular

21
Q

unda p

A

ascendenta
depolarizarea si contractia atriilor
transmiterea impulsului de la SA la AV

22
Q

complexul QRS

A

descendent, ascendent, descendent
depolarizarea ventriculilor

23
Q

unda T

A

deflexiune alungita
repolarizarea ventriculara

24
Q

aritmie

A

tulburare de ritm cardiac

25
Q

volum bataie

A

cantitatea de sange pompata in cursul unei sistole
70 ml

26
Q

debit cardiac

A

cantitatea de sange pompata intr un minut
5250 ml

27
Q

de cate ori bate inima pe minut

A

70-75 ori

28
Q

sufluri

A

zgomote cardiace anormale

29
Q

venulele

A

au perete in care t muscular si elastic este mai subtire decat la arteriole

30
Q

tunicile vaselor de sange

A

tunica interna- epiteliu pavimentos pe membr bazala
tunica medie- cel musc netede si fibre eleastice
tunica externa- tesatura laxa e fibre de colagen

31
Q

arterele

A

-tunica interna: epiteliu pavimentos + t elastic
-tunica medie: strat gros de muschi neted si t elastic
-tunica externa: colagen si t elastic
-au peretele mai gros ca al venelor - datorita stratului mijlociu

32
Q

arteriole

A

endoteliu si muschi neted

33
Q

venele

A

tunica externa mai mare ca a arterelor, tunica medie mai mica

34
Q

cat sange e stocat la nivelul venelor

A

60%

35
Q

presiunea sistolica

A

120mmHg

36
Q

presiunea diastolica

A

80mmHg

37
Q

pulsul

A

unda de presiune data de contractia si relaxarea ventriculului stang

38
Q

tahicardie
bradicardie

A

puls rapdi
puls lent

39
Q

cati L de sange

A

5L

40
Q

ce intra in vena porta

A

vena gastrica
vena splenica
vena mezenterica superioara
vena mezenterica inferioara

41
Q

ce intra in mezenterica inferioara

A

vena sigmoidiana
venele rectale superioare

42
Q

ce intra in mezenterica superioara

A

vena colica dreapta
vena colica mijlocie
vena ileocolica
vena apendiculara
vena pancreatico-duodenala
vena jejunala si ileala

biologie (19 decks)

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