Our heart is roughly the size of a clenched fist and is located in the middle of your chest between tow lungs, tilted more to the left. This small, fist-sized organ is one of the most critical organs.

1. HOW THE HEART WORKS

2. INTRODUCTION
Our heart is roughly the size of a clenched fist and is located in
the middle of your chest between tow lungs, tilted more to the
left. This small, fist-sized organ is one of the most critical organs
of the body, the centre of the circulatory system and responsible
for pumping blood and oxygen throughout the body. It also
removes carbon dioxide and waste products. With every breath
that you take, you bring in fresh oxygen in the body through the
lungs, the lungs deliver this oxygen to the blood and then the
heart circulates the blood to the lungs and other body organs.

3. Circulatory Systemof the Heart
The heart comprises of four chambers – two upper and two
lower chambers, known as the atrium and the ventricles
respectively. These chambers are divided by a wall of muscle
called the septum. The right atrium is above the right
ventricle and the left atrium is on top of the left ventricle.
The right chambers including the right atrium and right
ventricles are responsible for pumping blood to the lungs
and supplying oxygen from the lungs to the left chambers of
the heart consisting of the left atrium and left ventricles.
From the left chambers, the oxygenated blood is then
pumped to the other parts of the body, enabling effective
functioning. The cells from the other parts of the body return
the blood (devoid of oxygen) to the right chambers of the
heart, and then the process begins again.

4. Valves of the Heart
 Aortic Valve located on the left side of the heart
 Mitral Valve located on the left side of the heart
 Pulmonary Valve located on the right side of the heart
 Tricuspid valve located on the right side of the heart

5. The pressure of blood in the arteries lays the
foundation of how effectively blood is delivered to
all other organs of the body. The pressure of the
blood defines the flow of blood to the blood vessels
which in turn is also impacted by three basic
parameters:
 The pumping of blood in the heart
 The size and flexibility of the blood vessels
 The thickness of the blood
Blood Pressure of the Heart

6. Thank you
https://www.birlaheart.org/