
Sistema circulatorio
Authored by Jareth Aragon
Biology
University
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45 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fase en la cual el sodio entra +20mv
Repolarización
Despolarización
Repolarización rápida
Periodo refractario
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fase del intervalo QT donde el calcio entra y los canales de potasio se cierran.
Despolarización
Fase de Meseta
Repolarización rápida
Repolarización inicial
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Potencial de membrana en reposo (CARDIACA)
-80-90 mV
-60-70 mV
-30-40 mV
0-10 mV
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿A qué proteína se une el calcio para activar la contracción muscular cardiaca?
Miosina
ATP
Creatina
Actina
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
El ______ de la frecuencia cardiaca reduce la duración del ciclo cardiaco.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aumento de la tensión en el músculo cardiaco, pero con un acortamiento escaso o nulo de las fibras musculares.
Periodo de eyección
Periodo de relajación
Periodo de contracción isovolumétrica
periodo refractario
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Presión ventricular aumenta, estás presiones abren las válvulas semilunares para enviar sangre al cuerpo.
Periodo de contracción isovolumétrica
Periodo de relajación isovolumétrica
Periodo de eyección
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