P1 20. The short term effects of exercise on the vascular system

Question 1

what is vascular shunting

Answer 1

the redistribution of blood flow
where blood is directed away from inactive areas to active areas

Question 2

how is vascular shunting done?

Answer 2

through vasodilation and vasoconstriction

Question 3

what is vasodilation

Answer 3

the widening of the internal diameter (lumen) of the arteries supplying oxygen to the working muscles
increase the volume of blood travelling through
arteries dilate during exercise so more blood goes to active working muscles
increases oxygen supply and removal of waste substances

Question 4

what is vasoconstriction

Answer 4

the narrowing of the internal diameter (lumen) of the arteries supplying oxygenated blood to inactive muscles
restrict the volume of blood travelling through
arteries constrict during exercise so less blood goes to inactive areas

Question 5

what happens when we are resting

Answer 5

a high proportion of blood is directed to organs

Question 6

what happens when we exercise

Answer 6

blood directed towards the voluntary and working muscles
away from the digestive system to supply quads and hams
ensures voluntary muscles work aerobically which is the most efficient way to exercise