Podcast
Questions and Answers
What is the main purpose of cardiovascular adjustments during exercise?
What is the main purpose of cardiovascular adjustments during exercise?
- To decrease blood flow to the brain
- To deliver oxygen and nutrients to specific exercising muscles (correct)
- To reduce blood pressure in critical organs
- To increase blood flow to inactive tissues
What happens to muscle blood flow during exercise with more than 70% tension?
What happens to muscle blood flow during exercise with more than 70% tension?
- Blood flow decreases slightly
- Blood flow remains constant
- Blood flow stops completely (correct)
- Blood flow is normal
Which of the following factors contribute to maintaining high blood flow during exercise?
Which of the following factors contribute to maintaining high blood flow during exercise?
- Temperature decrease
- Decrease in tissue PCO2
- Increase in tissue PO2 (correct)
- Decrease in vasodilator metabolites
What is a characteristic of isotonic exercises?
What is a characteristic of isotonic exercises?
What initiates the increase in heart rate during exercise?
What initiates the increase in heart rate during exercise?
What leads to dilation of arterioles and precapillary sphincters during exercise?
What leads to dilation of arterioles and precapillary sphincters during exercise?
What happens to SBP and DBP when stroke volume increases during exercise?
What happens to SBP and DBP when stroke volume increases during exercise?
What is the effect of vasodilation on Total Peripheral Resistance (TPR) during exercise?
What is the effect of vasodilation on Total Peripheral Resistance (TPR) during exercise?
How does blood flow to contracting muscles change during exercise?
How does blood flow to contracting muscles change during exercise?
What happens to venous return during exercise?
What happens to venous return during exercise?
How does blood pressure change initially after exercise?
How does blood pressure change initially after exercise?
What local mechanisms help maintain high blood flow during exercise?
What local mechanisms help maintain high blood flow during exercise?
