20 Prolonged strenuous exercise usually leads to an increase

20. Prolonged strenuous exercise usually leads to an increase in lactic acid. Given your knowledge of normal circulation, explain why it is helpful to have a cool-down period with mild exercise rather than to tal rest immediateluy after strenuous exercise.

21. General anesthetics, presence of pain, and narcotic analgesics for pain often lead to slow, shallow respirations after surgery, circulation is frequently slow, and oxygen levels are somewhat reduced. Predict the effects on the partial pressure of carbon dioxide and, how this would affect pH.

Solution

20. during exercise the muscles are strained and due to which there is chsnge in pressure in the body. hence a cooling down is needed to bring the body\'s pressure back to normal. the cooling down period after strenous exercise helps in relaxing the muscles soreness and helps in reducing pain in the muscles. even during strenous exercise there is rapid high heart rate, which is helped to get back to normal during the cooling down period.