Sistema cardiovascular Flashcards

1
Q

Anatomía

A

Corazón - vasos sanguíneos

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2
Q

Vasos sanguíneos

A

Arterias, arteriolas, venas, capilares

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3
Q

Fisiología

A

Transporte de O2-nutrientes
Transporte de desechos a órganos
Mantiene temperatura corporal

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4
Q

—– tejido de consistencia líquida conformado por —-, —-, —-; que forman el plasma

A

Sangre, leucocitos, eritrocitos, megacariocitos

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5
Q

Eritrocitos

A

Contienen hemoglobina (HGB+O2=Oxihemoglobina) 4.5-5 millones

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6
Q

Leucocitos

A

Mecanismos de defensa, se forman en la médula ósea y ganglios linfáticos, 7 mil-8 mil

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7
Q

Megacariocitos

A

Coagulación, se forman en la médula ósea, 150 mil- 300 mil

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8
Q

Bomba pulsátil, músculo hueco, impulsa la sangre, situado en la parte media del tórax, forma piramidal

A

Corazón

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9
Q

Contracción del corazón

A

Sístole

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10
Q

Relajación

A

Diástole

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11
Q

Comprende la contracción del miocardio, y la relajación consecuente, dura 8 segundos

A

ciclo cardiaco

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12
Q

Fases del ciclo cardiaco

A

Diástole general (0.4 s) entra sangre por aurículas
Sístole auricular (0.1 s) sangre a ventrículos
Sístole ventricular (0.3 s) sangre a la arteria pulmonar y aorta

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13
Q

Ruidos cardíacos

A

Por vibración sanguínea

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14
Q

R1: cierre de —- en la sístole

A

válvulas (tricúspide-mitral)

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15
Q

R2: cierre de —–, inicio de —

A

válvulas (aórtica- pulmonar), diástole ventricular

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