License Image Vascular Resistance The body uses blood vessel diameter as one way to help regulate blood pressure. A normal blood vessel has some degree of smooth muscle contraction (or “tone”) that determines the diameter of the vessel. Nerves controlling the muscle fibers in the media and certain substances in the blood, can cause the […]
arteries
Coronary Artery Disease
License Image The wall of an artery contains 3 layers: the tunica intima, the tunica media, and the tunica externa. The intima is the thinnest layer, only one cell thick, it surrounds the lumen of the blood vessel through which blood flows. The media is usually the thickest containing layers of smooth muscle cells and […]
Artery System
License Image The main arteries are: aorta Head & Neck: external carotid artery internal carotid artery common carotid artery Arm: subclavian artery brachial artery radial artery ulnar artery Leg: common iliac artery external iliac artery femoral artery popliteal artery anterior tibial artery posterior tibial artery
