Vascular Shunt Flashcards
Vascular Shunt
The redistribution of blood around the body
Memory Method
VVVAScular shunt
VVVAScular shunt
Vasomotor Control Centre
Vasodilation
Vasoconstriction
Arterioles
pre capillary Sphincters
VCC
Controlled by Vasomotor Control Centre
Which receives information from Chemoreceptors, Baroreceptors and proprioceptors
Chemoreceptors
Detect increase/ decrease in C02 and O2
Baroreceptors
Detect increase/ decrease in blood pressure
Proprioceptors
Detect increase/ decrease in movement
Vasodilation
Open
During exercise- Vasodilation of arterioles and pre capillary sphincters to working muscles
At rest- Vasodilation of arterioles and pre capillary sphincters to non-essential organs
Vasoconstriction
Close
During exercise- Vasoconstriction of arterioles and pre capillary sphincters to non-essential organs
At rest- Vasoconstriction of arterioles and pre capillary sphincters to working muscles
Increase in sympathetic stimulation
Limits blood flow
Decrease in sympathetic stimulation
Increases blood flow
Blood distribution during exercise
80% working muscles
20% non-essential organs
Blood distribution during rest
20% working muscles
80% non-essential organs
