Redistribution of Cardiac Output
- Created by: cara12
- Created on: 18-04-19 09:51
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- Redistribution of cardiac output
- Arterioles- Widen(vasolidation)to allow more blood more blood through
- Pre-capillary sphincters- rings of smooth muscle at the junction between arterioles and capillaries, which can dilate or constrict to control blood flow through the capillary bed
- Vascular shunt
- Mechanism which directs blood to the exercising muscles through vasolidation and vasoconstriction.
- Redistribution of blood during exercise:
- Increase: blood flow to the skeletal muscles in order to supply them with oxygen and nutrients and to remove carbon dioxide
- Increase: blood flow to the heart to provide additional oxygen, as it has to work harder during exercise
- Increase: blood flow to the skin in order to regulate body temperature
- Decrease: blood flow to some abdominal organs to allow for greater blood flow to active body parts
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