The heart is a muscle and muscle require oxygenated blood, it is not a special circulatory system it is a extension of the main system. While you might think the heart would have no problem getting enough oxygen-rich blood, the heart is no different from any other organ. It must have its own source of oxygenated blood. The heart is supplied by its own set of blood vessels. These are the coronary arteries. There are two main ones with two major branches each. They arise from the aorta right after it leaves the heart. The coronary arteries eventually branch into capillary beds that course throughout the heart walls and supply the heart muscle with oxygenated blood. The coronary veins return blood from the heart muscle, but instead of emptying into another larger vein, they empty directly into the right atrium.
The heart needs its own blood vessels because the blood moving through it is moving too fast to absorb nutrients, without the vessels the heart would not have sufficient oxygen to contract and therefore beat properly
The muscles required to circulate the blood necessitates a thick wall muscle group. The supply of oxygenated RBCs must be constant and immediate, so a closed system has evolved.
To pump blood to the rest of the body to receive oxygen so we don't you know, die or anything.
Because it is a muscle and requires circulation/oxygen/blood supply for the muscle to function. (i.e. pump)
All muscles in the body, whatever their function, need oxygen and nutrients, and these are delivered through the blood.
so it can get its own oxygen
i think its the same as a human
Cholesterol can play an important part in the material that causes the blocking of blood vessels leading to thrombosis stroke and heart attack.
the connective tissue is the blood in the cardiovascular system, and the heart is muscle tissue.
The circulatory system is important to humans because the main components are the heart, the blood, and blood vessels.
Empedocles.
I believe all organs (including the heart) require oxygen.
Without this system, human life would not exist (not to mention mammals, reptiles, amphibians, and all other animals which require a heart and blood vessels for survival).
the heart is in the circulatory system.
The heart belongs to the Circulatory System or the Cardiovascular System.
Our circulatory system is dependent on the efficient pumping of blood round our bodies by our four chambered heart. If the heart stops, then the circulatory system will also stop - resulting in death! Blockages in part of our veins and arteries may also cause problems and require treatment.
There are a number of medical conditions that may require open heart surgery. These include coronary heart disease and cases where the patient has a defective heart valve.
Some of the heart defects in children which require pediatric heart surgery is having too little heart valves. Consult a doctor to learn more about this disease.