Question: Which type of muscle tissue has the greatest effect on the body’s heat production?

-smooth

-cardiac

-skeletal

-All of these muscle types have about the same effect on the body’s heat production

Answer: skeletal

Question: Sarcomere is best defined as…

• a repeating unit of striated muscle

• - actomyosin proteins

• -a storage form of calcium

• -thick and thin filaments

• Answer: a repeating unit of striated muscle

• Question: When a muscle contraction develops tension but doesn’t shorten the muscle, the contraction is called…

• -isometric

• -unfused tetanus

• -isotonic

• -incomplete twitch

• Answer: isometric

• Question: Skeletal muscle does each of these except..

• -maintain posture

• -ventilate the lungs

• -pump blood

• -produce movement

• Answer: pump blood

• Question: Muscle fatigue occurs due to a buildup of __________ and __________ in pH.

• -creatine phosphate; decrease

• -creatine phosphate; increase

• -lactic acid; increase

• -lactic acid; decrease

• Answer: lactic acid; decrease