MICROANATOMY

Detailed explanation-1: -Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues.

Detailed explanation-2: -Oxygen is delivered to skeletal muscle fibers by convective transport in blood flowing in capillaries that run approximately parallel to the fibers and by diffusion from the capillaries to surrounding muscle fibers.

Detailed explanation-3: -Muscular arteries include the anatomically named arteries like the brachial artery, the radial artery, and the femoral artery, for example. Muscular arteries contain more smooth muscle cells in the tunica media layer than the elastic arteries.

Detailed explanation-4: -Capillaries. The arteries eventually divide down into the smallest blood vessel, the capillary. Capillaries are so small that blood cells can only move through them one at a time. Oxygen and food nutrients pass from these capillaries to the cells.