Can someone explain to me how at least 2 organ systems are affected by increased physical activity!?

Answer 1

1. respiratory system, lung - there will be more frequent relaxation and contraction that may be a burden to the lung

2. muscular/muscles, there will be a lactic acid production as a result of strenuous muscular activity (shortage of O2)

Answer 2

Physical activity causes increased sympathetic activity of the autonomic nervous system (autonomic innervation, plus release of epinephrine, norepinephrine, and other catecholamines.

1. Sympathetic innervation increases cardiac output by stimulating beta-1 receptors in the heart, and thus increasing contractile strength.

2. Sympathetic innervation of alpha-1 receptors in the vasculature (primarily arterioles) DECREASES blood flow by vasoconstriction to GI organs (stomach, intestine, etc.) to increase blood flow to skeletal muscle.

3. Sympathetic innervation of beta-2 receptors increases vasodilation of arterioles, INCREASING blood flow to skeletal muscles.

Answer 3

Increased physical activity causes your skin to sweat and your brain to function at a primitive level.

Answer 4

heart and lungs perform better.