ANATOMY

Detailed explanation-1: -During exercise, the cardiovascular system redistributes the blood so that more of it goes to the working muscles and less of it goes to other body organs such as the digestive system. This redirection of blood flow is caused by a mechanism (or process) called the vascular shunt mechanism.

Detailed explanation-2: -Vascular shunting is the process of redistribution of blood. Blood diverted to active areas and diverted away from inactive areas. Occurs through vasoconstriction (narrowing of arteries) and vasodilation (widening of arteries). Active areas during exercise = brain and working muscles.

Detailed explanation-3: -A blood vessel that links an artery directly to a vein, allowing the blood to bypass the capillaries in certain areas. Shunt vessels can control blood flow by constriction and dilation.

Detailed explanation-4: -Introduction/purpose: During exercise, redistribution of blood takes place to enhance blood flow to exercising muscles.

Detailed explanation-5: -Arteries and arterioles carry oxygenated blood to the muscles, capillaries diffuse through gaseous exchange, oxygen into the muscles and carbon dioxide out. Venules and veins carry deoxygenated blood back to the heart.