MEDICAL PHYSIOLOGY

Detailed explanation-1: -Muscle fatigue occurs when a muscle can no longer contract in response to signals from the nervous system. The exact causes of muscle fatigue are not fully known, although certain factors have been correlated with the decreased muscle contraction that occurs during fatigue.

Detailed explanation-2: -A muscle exercised strenuously for a prolonged period may lose its ability to contract, a condition called fatigue. The underlying causes of fatigue are not completely understood, but a number of factors may be involved, including electrolyte imbalances and decreased ATP levels in the muscle cells.

Detailed explanation-3: -Muscle Fatigue. 1. When a muscle loses its ability to contract during strenuous exercise, it is referred to as fatigue. 2. Muscle fatigue usually arises from the accumulation of lactic acid in the muscle.

Detailed explanation-4: -Muscle atrophy can occur due to malnutrition, age, genetics, a lack of physical activity or certain medical conditions. Disuse (physiologic) atrophy occurs when you don’t use your muscles enough. Neurogenic atrophy occurs due to nerve problems or diseases.

Detailed explanation-5: -Muscular endurance is the ability of muscle or muscle group to continue work over a long period of time.