endothelium
The lumen is the inner open space or cavity of a tubular organ, such as a blood vessel or an intestine
The tunica interna of a blood vessel is a single layer of endothelium with a basal lamina.Connective tissue
arteriosclerosis
Atherosclerosis is a process where plaques are formed within the lumen (inner lining) of blood vessels. This causes narrowing of the blood vessel.
The lithosphere is the outer layers of the earth surface and surrounds the inner parts of the earth.
A thin inner layer, a muscular middle layer (that gives the vessel its flexibility under pressure from the filling blood), and a fiber-like outer layer that gives the vessel strength to not burst when the heart pumps blood to the body.
acs develop with cholestrol lesion deposit in to our vessel of blood and blood stream distrub due to cholestrol lesion in the inner side of vessel and blood supply distrub due to this,and cause atheriosclorosis and angina,stroke and mi.
Blood Pressure can be affected by all three factors. If the vessel diameter increases (vasodilation) Blood Pressure can be lowered. Blood Viscosity can also have an affect on blood pressure, the more viscous (thicker) the blood is, the slower it will flow through the body. Finally, irregular surfaces of the blood vessel wall can cause them to catch or become stuck, which ultimately slows blood flow, reducing blood pressure!
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the layer that supplies blood to the retina is the "Sclera" which is the outermost layer of the eye.