Fisiología Humana
Quiz
•
Other
•
3rd Grade
•
Medium
Cristina Pesantez
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un músculo esquelético se contrae rápidamente cuando lo hace frente a una carga
Nula
Lenta
Rápida
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿La longitud normal de un músculo en reposo es 2um?
Verdadero
Falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿ Cuál es la segunda fuente de energía?
a. Fosfocreatina
b. Glucólisis
c. Metabolismo oxidativos
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Cuanto mayor sea el número de puentes cruzados que estén en contacto con el filamento de actina, mayor será la fuerza de contracción
Falso
Verdadero
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
¿Cual es el porcentaje de aporte energético del músculo que se convierte en trabajo?
Mayor al 70%
Menor del 25%
Entre 25% y 70%
Ninguna de las anteriores
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿La contracción muscular se produce por un mecanismo de deslizamiento de los filamentos?
Verdadero
Falso
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Los filamentos de actina están formados por…
actina, tropomiosina y troponina
calcio y potasio
actina y calcio
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El filamento de actina posee un peso molecular de 70.000 y una longitud de 40 nm
Falso
Verdadero
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La contracción de ATP en la fibra muscular es suficiente para mantener la contracción durante solo 20 segundos
Falso
Verdadero
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