definition of all parts of heart ,if anyone give improper answer ..or spasm I.can report he or she.
Answers
Explanation:
Heart Chambers, Valves, Vessels, Wall and Conduction System. The heart is made up of four chambers. The upper two chambers are called atria (singular: atrium) and the lower two are known as ventricles (singular: ventricle). Muscular walls, called septa or septum, divide the heart into two sides.
Answer:
The circulatory system consists of the heart , arteries, veins, capillaries, and blood.
Explanation:
The heart is roughly triangular in shape.
It is made of special muscle called cardiac muscle. The size of our heart is about the same as our 'clenched fist'.The heart has four compartment called `chambers' inside it. The upper two chambers of heart are called atria ,and the lower two chambers of heart are called ventricles. The two atria receive blood from the two main veins .And the two ventricles transport blood to the entire body and the lungs. "The job of heart is to pump blood around our body".