They comprise of three layers; inner, middle, and outer.
In the center of the vessel, there is the lumen, which carries the blood. In an artery the lumen is smaller, and in a vein it is much larger.
The tunica intema is the inner layer, and it is made up of the endothelium (the lining of the vessel), specifically squamous epithilium.
The tunica media is the layer of elastic fibres and smooth muscle which allow the lumen to shrink (vasoconstriction) and dilate (vasodilation).
The tunica externa is a layer of collagen. It is the strong part of the vessel, as collagen is a fibrous protein and insoluble in water.
all around the body
At the heart.
The heart, The lungs, and capillary beds
capillaries
Capillaries
Arteries drain (pump blood) into veins. Veins drain into your lungs and heart to be re-oxygenated. (This is not true for veins and arteries to and from your lungs.)
blood travels away from the heart through arteries and blood travels to the heart through the veins
arteries.
Renal arteries and veins service an animal's kidneys.
The amount of muscle in veins and arteries varies in the sense that arteries are more muscular than veins to give them extra elasticity and strength to deal with surges of blood.
the three blood vessels are the Veins capillaries Arteries the arteries.
Arteries drain (pump blood) into veins. Veins drain into your lungs and heart to be re-oxygenated. (This is not true for veins and arteries to and from your lungs.)
Veins do not pulsate Arteries pulsate Veins can easily collapse Arteries do not collapse (except in shock) Veins contain valves Blood pressure is low in the veins and higher in the arteries
Cellulose is what surronds veins and arteries.
Thee difference between muscle in veins and arteries is that muscles of arteries are thicker compared to those of veins.
blood travels away from the heart through arteries and blood travels to the heart through the veins
The tunica media is thicker in arteries than in veins.
Capillaries are the endpoints of the circulatory system. They are where veins and arteries meet (arteries carry red blood, which comes from the heart, moving toward the capillaries, and veins carry blue blood, which heads from the capillaries toward the heart).
if you attach your veins and arteries together,it will go around the world
Arteries, capillaries, & veins.
arteries and veins
Arteries have a pulse