Yes, the highest in the aorta and larger elastic arties, and decreses as the arteries branch and blood travels farther from the heart.
Blood pressure drops significantly in the arterioles and steadily decreses through capillaries, venules, and veins, and drops to zero in the right atrium.
True
Arterioles are small blood vessels that carry oxygenated blood away from the heart to the capillaries, while venules are small blood vessels that collect deoxygenated blood from the capillaries and carry it back to the heart. Arterioles typically have thicker walls and are more muscular than venules to help regulate blood flow and pressure, while venules have thinner walls and lower pressure.
Veins
capillaries
Capillaries
Small postcapillary venules consist entirely of endothelium just like capillaries (the larger venules have smooth muscle and thin externa as well). Also both capillaries and venules have no elastic tissues. Postcapillary venules are extremely porous which makes them more like capillaries then veins, and fluid and WBC's move easily into the bloodstream through these walls.
Arterioles are the small arteries that lead into the capillaries, which connect to cells in the body. Venules are the small veins that the capillaries flow back into, leaving the cells.
Renal vein It is not renal vein. It is venules. renal vein is only at one point of the body, were talking capillaries; which are all over the body.
cappillaries==============The smallest veins in the body are the venules. Capillaries join venules and arterioles (the smallest arteries) together. Arteries carry the blood from the heart around the whole body; while veins carry the blood back to the heart. They are joined by the capillaries, where the most important actions happen.More information in related links.
Capillaries lead to the smallest venules. The capillaries connect arteries and veins.
Venules
capillaries