If you clench your hand into a fist, this is approximately the same size as your heart. It is located in the middle of the chest and slightly towards the left. The heart is a large muscular pump ...

With aging there are changes in the cardiovascular system, which result in alterations in cardiovascular physiology. The changes in cardiovascular physiology must be differentiated from the ...

Cardiovascular system - Edexcel The cardiovascular system is made up of three main parts - the heart, the blood vessels and the blood that flows through them. Respiratory system - Edexcel The ...