Tunica media
The Arteries
Coronary arteries
The myocardium or heart muscle is nourished with oxygen-rich blood. The vessel that delivers the blood to the myocardium is called Coronary Arteries.
The name of the blood vessel which supplies glucose and oxygen to the heart muscle is an artery. Arteries carry blood away from the heart.
Arteries carry blood away from the heart and veins carry blood into the heart.
The major blood vessels include the Arteries which have thicker walls compare to veins and blood flows in pulse, Veins which have thicker walls compared to capillaries and have vales , and lastly Capillaries which are smaller compared to veins and arteries and do not have valves.
The aorta is the largest artery in the human body. It is usually medically divided by anatomical division or by direction of blood flow. Thus, there is the abdominal aorta or the ascending aorta, which can refer to the same artery.
Smooth muscle is mostly in the afferent branch going from the arteries to the arterioles. The body controls where blood will flow by controlling the vessel diameter. An increase in sympathetic tone constricts smooth muscle, decreases blood vessel diameter, and limits blood flow.
The left and right coronary arteries carry oxygenated blood from the base of the aorta to the heart muscle.
Arteries have more muscular walls than veins and capillaries. This allows the force needed to move blood to the entire body.
Arteries
capillaries.