Exam 7: The Muscular System

Figure 7-1 Structural Components of a Skeletal Muscle Fiber Use Figure 7-1 to identify the labeled part. -Acetylcholinesterase is found within the

Which statement regarding isometric contractions is true?

The heart has to be able to regulate its contractions. Heart muscle, unlike skeletal muscle, cannot go into a tetanus. This is because

The muscle that would be used to blow air into a trumpet or a clarinet is the

Muscle cells

Muscle fascicles are separated by

Which of the following occurs when glycolysis produces pyruvate faster than it can be used by the mitochondria?

The muscle that originates from the superior surface of the pubis around the symphysis is the

A person whose genetic makeup makes him or her a better marathon runner than a sprinter probably has more ________ in his or her leg muscles.

Muscles comprising the quadriceps group include the

Which statement regarding skeletal muscle is true?

Figure 7-1 Structural Components of a Skeletal Muscle Fiber Use Figure 7-1 to identify the labeled part. -The enzyme acetylcholinesterase causes acetylcholine to

The muscle that dorsiflexes the foot is the

During activities requiring aerobic endurance,

A layer of collagen fibers that surrounds an entire muscle is called

As a skeletal muscle contraction is initiated, acetylcholine binding alters the motor end plate membrane's permeability to

Which of the following is an origin of the pronator teres?

Figure 7-1 Structural Components of a Skeletal Muscle Fiber Use Figure 7-1 to identify the labeled part. -The specialized sarcolemma that contains acetylcholine receptors is the

Fast fibers

Figure 7-1 Structural Components of a Skeletal Muscle Fiber Use Figure 7-1 to identify the labeled part. -Label A is pointing to