The blood vascular system consists of blood vessels (arteries, arterioles, capillaries, and veins) that convey blood from the heart to the organs and back to the heart. This system should work so as to minimize the energy expended by the heart in pumping the blood. In particular, this energy is reduced when the resistance of the blood is lowered. One of Poiseuille's Laws gives the resistance R of the blood as R = CLr^4 where L is the length of the blood vessel, r is the radius, and C is a positi

Concept of the Day|Blood vessels and Types of Circulation| BIOLOGY| NEET 2021/2022| Pankhuri Ma'am

Blood Vessels | Circulatory Anatomy