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.
Veins tend often to look collapsed or flattened under the same circumstances. In addition, the tunica media of veins is much thinner than in arteries, and the adventitia is the thickest layer. Identify the three layers of both arteries and veins and note the differences in thickness. Slide #174 In very large vessels, the adventitial layer (outer layer) will contain blood vessels (vasa vasorum) that supply the vessel wall.