Exam 7: The Muscular System

About 25% of the body's heat at rest is produced by the ____________________ of the skeletal muscles.

In muscles, oxygen is stored by the protein ____________________.

Within a muscle fiber, the sarcoplasmic reticulum contains ____________________.

In the sliding filament mechanism, ____________________ filaments pull ____________________ filaments toward the center of the sarcomere.

Which statement is NOT true of synergistic muscles?

When lactic acid accumulates in exercising muscle cells, the result is:

The function of the levator ani is:

Which statement is NOT true of the sliding filament mechanism of muscle contraction?

The contraction of skeletal muscles is initiated by the ____________________ lobes of the ____________________.

The sarcoplasmic reticulum of a muscle fiber contains:

Which statement is NOT true of antagonistic muscles?

With respect to muscles, glycogen is:

During depolarization of a muscle fiber, ____________________ ions rush ____________________ the cell.

The term oxygen debt means:

Which statement is NOT true of the energy sources for muscle contraction?

Which of the following statements are true of movement? (Read carefully and select all of the correct statements.)

In the neuromuscular junction, the ____________________ is the membrane of the muscle fiber.

The term oxygen debt refers to a lack of oxygen during the process of ____________________.

Which of the following statements are true of the body's responses to exercise? (Read carefully and select all of the correct statements.)

During depolarization, the sarcolemma has a ____ charge outside and a ____ charge insidE.