Muscular System

Which type of cellular respiration makes the most energy for our muscles?

• anaerobic

• fermentation

• aerobic

• photosynthesis

Tags

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Muscle contraction is the _______ of muscle fibers.

• hypertrophy

• lengthening

• atrophy

• shortening

Which of the following terms is known as the smallest functional unit of a muscle?

• facile

• sarcomere

• myofibril

• axon

What type of muscle tissue is found in the stomach?

• skeletal muscle

• smooth muscle

• cardiac muscle

What type of muscle tissue is found in the heart?

• skeletal muscle

• smooth muscle

• cardiac muscle

What type of muscle tissue is found in the walls of blood vessels?

• skeletal muscle

• smooth muscle

• cardiac muscle

Which of the following is true of anaerobic respiration?

• It produces lactic acid.

• It causes fatigue.

• It produces an oxygen debt.

• All of the above.

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What are the 2 types of contracting proteins that make up a myofibril?

• calcium and acetylcholine

• squamous and stratified

• perimysium and endomysium

• actin and myosin

A person has torn the muscle inside of his stomach. What type of muscle tissue is torn?

• smooth

• skeletal

• cardiac

• elongated

Skeletal muscles are striated due to the alternating A (dark) and I (light) bands of filaments in the sarcomere.

• True

• False