becuse you need it to help you breath
The heart
The heart is an organ.
the heart is an organ while it is a part of the circulatory system
Cause its a organ that never stops beating
The human heart can be considered either a muscle or an organ depending on what you are studying or what field of work you research for. i watched this recently on the health and fitness channel, the heart is a big muscle.
It is an organ. The heart belongs to cardio-vasculary organ system.
The vena cava is the biggest artery in the body that is attached to the heart, so i would say the cardiovascular system.
Nope. The human heart is a muscle not an organ.
Its an organ
the heart is its own organ if you mean system it is part of the cardiovascular system.
The heart is the first organ to develop in a fetus. Together, blood and the circulatory system, that is powered by the heart, form the first organ system.
The main organ of the circulatory system is the heart.