arterioles
Arterioles generally have the highest resistance because they are so extremely small.
Arterioles.
arterioles
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.
Aorta. It is essential to blood flow in the Heart (the most important organ in the body).
Arterioles are small blood vessels that carry oxygenated blood to the body tissues.
Arterioles.
Sphincters
vasoconstriction
The artery and vein.
Arterioles.