Extensibility refers to the ability of a muscle to stretch

Indicate whether the statement is true or false


TRUE

Anatomy & Physiology

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Which of the following structures propagates action potentials from the surface of a muscle fiber to its interior?

A. The sarcomeres B. The sarcoplasmic reticulum C. The endomysium D. The myofibrils E. The T tubules

Anatomy & Physiology

Vigorous physical activity causes total metabolic rate to

A. increase for the duration of the exercise. B. increase during the exercise and for hours afterwards. C. remain constant. D. decrease to conserve energy during the exercise but increase to repay oxygen debt. E. decrease during the exercise and for hours afterwards.

Anatomy & Physiology

Which of the following contains sodium?

A) H2O B) NaCl C) N2 D) CH4 E) H2SO4

Anatomy & Physiology

The embryonic structure that gives rise to the structures of the central nervous system is called the ________.

A. forebrain B. neural plate C. brainstem D. notochord

Anatomy & Physiology