THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Venules: Veins begin as tiny vessels called venules and get gradually larger as they near your heart. Venules receive blood from capillaries. Veins: Unlike arteries, veins don’t have to carry highly pressurized blood, but they do have to carry large volumes of deoxygenated blood back to your heart.

Detailed explanation-2: -Capillaries are thin walled, highly branched vessels that feed the tissues and collect wastes to be carried back to the lungs, liver, or kidney for elimination. Capillaries empty into the venules, which in turn drain into the veins that lead back to the heart.

Detailed explanation-3: -Most commonly, arterioles branch into capillary beds and then collect into small venules and control the volume of blood distribution in a given capillary bed. They are the gatekeepers to the capillary network that supplies cells and tissues with oxygen and nutrients and removes waste products.