Honors Muscle System Flashcard

Front

What connects muscle to bone using a flat sheet of connective tissue?

Back

Aponeurosis

Front

What is the distance a sarcomere stretches from?

Back

Z disc to Z disc

Front

Which guard protein does calcium bind to in order to allow muscle contraction?

Back

Troponin

Front

Approximately how many muscles are there in the human body?

Back

650

Front

In arm flexion, which muscle is the antagonist?

Back

Triceps Brachii

Front

What is the basic functional unit of a muscle called?

Back

Sarcomere

Front

What is the role of myosin in muscle contraction?

Back

Myosin interacts with actin to produce muscle contraction.

Front

What is the function of tropomyosin in muscle fibers?

Back

Tropomyosin blocks the binding sites on actin for myosin.

Front

What type of muscle is involuntary and found in the walls of organs?

Back

Smooth muscle

Front

What is the primary energy source for muscle contraction?

Back

Adenosine triphosphate (ATP)