Compare and contrast the overall responses of the sympathetic and parasympathetic divisions
What will be an ideal response
The sympathetic division acts to prepare the body for maximal skeletal muscle activity to either fight or flee a perceived threat. Some of the changes stimulated by sympathetic activation include: 1 ) increased heart rate and contractions, 2 ) shunting blood away from the digestive organs to the lungs, liver, heart and skeletal muscles allowing these organs to increase function, 3 ) bronchodilation leads increased O2 delivery to the blood, and 4 ) liver also releases more glucose. These changes increase blood oxygen and glucose to provide the body cells with the ability to increase ATP production. The parasympathetic system tends to return the body to normality, and to prepare the body to acquire energy. For instance, the parasympathetic division stimulates increased blood flow to digestive, reproductive and urinary organs. More digestion and defecation occurs, sexual activity can be supported, and urine production is increased. Decreased heart rate and blood pressure also occur.
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