Cardiovascular System Cardio means the heart and vascular means the network of capillaries, arteries and veins. The vital role of the cardiovascular system in to maintain homeostasis, this depends on the continuous and controlled movement of blood through the capillaries that fill every tissue and reach every cell in the body. The heart is a hollow pear-shaped muscular organ that is situated between the lungs, and is in the middle of the chest. The heart …showed first 75 words of 2420 total…

…showed last 75 words of 2420 total…blood circulation are: ·Small blood vessels dilate in muscles that are working ·Large blood vessels (arterioles) dilate in muscles that are working ·Larger blood vessels constrict in muscles that are not working ·Blood vessels in blood reservoirs constrict, this makes more blood available for the working muscles ·Increased heart rate and force of contraction (increased blood to the heart, muscles pump it back) ·Increased blood pressure ·Increased gaseous transfer between tissues etc. ·Increased body temperature