Frankincense Oil Supports. Frankincense Oil, Olibanum Oil or Oil of Lebanon is a ancient essential oil used for spiritual connection and to support a healthy immune system. It is also a valuable ingredient in skin care products for healthy looking skin.
The total cross-sectional area of the capillaries is the greatest; that's why the blood velocity is the slowest through capillaries (this is very important since this is the site of nutrient exchange and you want blood to slow down to allow proper exchange rather than rush past).apillaries have the most area. Its pretty simple. Capillaries carry blood to every cell in the body. Obviously they have the biggest surface area.
Blood pressure is reduced at the venous end because capillaries have a greater cross-sectional area at their venous end than their arterial end. However, there is no reduction in osmotic pressure, which remains at 21 mm Hg and is now higher than blood pressure.