
FISIOLOGIA CARVIOVASCULAR, RESPIRATORIA Y RENAL
Quiz
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Health Sciences
•
University
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Medium
Jesus MM
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. El principal marcapasos fisiológico del corazón es:
a) Nodo AV
b) Haz de His
c) Fibras de Purkinje
d) Nodo SA
e) Miocardio auricular
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Durante la sístole ventricular, la válvula mitral:
a) Está abierta
b) Está cerrada
c) Abre y cierra alternativamente
d) Permite flujo retrógrado
e) No participa
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. El volumen telediastólico ventricular (EDV) depende principalmente de:
a) Contractilidad
b) Precarga
c) Postcarga
d) Frecuencia cardiaca
e) Resistencia periférica
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. El efecto Bowditch o “treppe” se refiere a:
a) Aumento de contractilidad con mayor frecuencia cardíaca
b) Disminución de contractilidad con frecuencia baja
c) Relajación diastólica prolongada
d) Mayor volumen sistólico con menor frecuencia
e) Aumento de la poscarga
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. La ley de Frank-Starling indica que:
a) A mayor precarga, menor volumen sistólico
b) A mayor volumen diastólico, mayor fuerza de contracción
c) A mayor frecuencia, menor gasto cardiaco
d) A mayor contractilidad, menor presión arterial
e) Ninguna es correcta
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. El gasto cardíaco se calcula como:
a) Volumen diastólico × presión venosa
b) Volumen sistólico × frecuencia cardíaca
c) Volumen latido ÷ presión arterial
d) Precarga × postcarga
e) Resistencia periférica × frecuencia
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. La poscarga se relaciona directamente con:
a) Precarga
b) Presión arterial sistémica
c) Volumen sistólico
d) Frecuencia cardíaca
e) Volemia
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