Muscular System

• The intensity of exercise that can be performed aerobically depends on a person's maximal oxygen uptake and lactate threshold (p. 343)

The body consumes extra oxygen for a period of time after exercise has ceased. This extra oxygen is used to repay the oxygen debt incurred during exercise (p. 344)

Glycogenolysis and gluconeogenesis by the liver help to supply glucose for exercising muscles (p. 343)

Trained athletes obtain a higher proportion of skeletal muscle energy from the aerobic respiration of fatty acids than do nonathletes (p. 346)

Muscle fatigue is associated with anaerobic respiration and the production of lactic acid (p. 346)

The proportion of energy derived from carbohydrates or lipids by exercising skeletal muscles depends on the intensity of the exercise (p. 343)

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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