carry deoxygenated blood to the heart [except pulmonary veins]; veins, with the exception of the pulmonary vein, carry blood that has been used by body tissues, back to the heart; veins carry blood and waste products to the heart where these will be processed through the lungs and given oxygen again.rtery Structure. arteries have three layers: a smooth inner layer; a strong, muscular layer; and a thin outer layer; connective fibers in artery walls allow for the elasticity needed for the artery to function; arteries are usually larger than veins.
Asker's rating. 1  Cl- has the smallest radius due to the fact that atoms' radii get smaller as you go up and to the right in the periodic table. 2  F- has the smallest radius. 3  Sice flourine is in the lowest energy level so it has the lowest radius. 4  fluorine.
The base radius of a circular cone is the radius of its base; often this is simply called the radius of the cone. The aperture of a right circular cone is the maximum angle between two generatrix lines; if the generatrix makes an angle Î¸ to the axis, the aperture is 2 Î¸. A cone with its apex cut off by a plane is called a truncated cone; if the truncation plane is parallel to the cone's base, it is called a frustum.