http://www.mediafire.com/download/ypl... how much money have you spent on league of legends?Check for your self! 1  Entertainment.2  Standard YouTube License.ttp://www.mediafire.com/download/ypl... how much money have you spent on league of legends? Check for your self! 1  Entertainment. 2  Standard YouTube License.
The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions: Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).
There are two different factors involved in heart rate management: intrinsic and extrinsic controls. Intrinsic regulation of heart rate is the result of the unique nature of cardiac tissue it is self-regulating and maintains it's own rhythm without direction.