Author: Anonymous

During vigorous exercise, there may be insufficient oxygen available to completely break down pyruvic acid for energy. As a result, the pyruvic acid is converted to ________. A) a strong baseB) stearic acidC) hydrochloric acidD) lactic acid  

Most of the skeletal muscles in our bodies are classified as ________. a. first classb. second classc. third classd. All of the above are equally distributed in our bodies.

The _______ muscles include the supraspinatus, infraspinatus, teres minor, and subscapularis. a. shoulder bladeb. rotator cuffc. humerusd. arm extender  

Which muscle group is involved when a “pulled groin” occurs? A) quadricepsB) thigh adductorsC) lateral rotatorsD) hamstrings  

All of these muscles insert onto the humerus EXCEPT the ________. a. triceps brachiib. deltoidc. pectoralis majord. latissimus dorsi

Swimmers tend to have particularly well-developed __________ muscles. a. coracobrachialisb. teres minorc. subscapularisd. latissimus dorsi  

In general, a muscle that crosses on the anterior side of a joint produces ________. A) extensionB) abductionC) flexionD) adduction  

. The muscle that provides the major force for producing a specific movement is a(n) __________. a. prime moverb. antagonistc. synergistd. fixator  

What is the functional unit of a skeletal muscle called? A) a sarcomereB) a myofilamentC) a myofibrilD) the sarcoplasmic reticulum  

What is the functional role of the T tubules? A) stabilize the G and F actinB) enhance cellular communication during muscle contractionC) hold cross bridges in place in a resting muscleD) synthesize ATP to provide energy for muscle contraction