Which of the following is true regarding the parallel elastic component (PEC) of muscular elasticity?

A. This component is provided by the muscle membranes.
B. This component provides resistance when a muscle is passively stretched.
C. This is the component primarily responsible for the elasticity of muscle.
D. both A and B
E. all of the above


D. both A and B

Anatomy & Physiology

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A) ?acid B) ?base C) ?neutral

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Postganglionic ________ nerves release acetylcholine.

A. somatic B. sensory C. sympathetic D. parasympathetic

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Increased concentrations of plasma proteins, increased venous pressure, and lymphatic obstruction all tend to cause tissue edema.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Skeletal muscle fibers with the greatest endurance rely on ________ for energy.

A) lactic acid accumulation B) oxidative phosphorylation C) anaerobic glycolysis D) ketone body degradation

Anatomy & Physiology