Q Question 1 2 / 2 points The functional unit of a muscle fiber is called what? Question 2 2 / 2 points Which of the following is not a type of muscle tissue? Question 3 2 / 2 points Which structures of cardiac muscle allows the cells to contract in waves so the heart can work as a pump? Question 4 2 / 2 points All of the following are functions of skeletal muscles except for which? Question 5 2 / 2 points Smooth muscle tissue can be found in all but which of the following places?

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