- The heart is located in between both the lungs in the rear of chest bones. The front part of the heart which is called ‘Apex’ is located in the right side of the body and the lower part which is called ‘Base’ is located in the left side of it. The heart is made of muscles and is hollow from inside and filled with blood all the time. The blood present in the left section of the heart is pure and red in appearance while the blood present in the right section of it is defiled and purple in appearance. Many tube like structures grow from the heart that carry pure blood to the different body organs and are known as ‘Blood vessels’. These structures are known as by mainly three names- artery, vein and kashika. Artery is red in colour and carries the blood present inside the heart to all the body organs. Veins are purple in appearance and carry polluted (defiled) blood from different organs to the lungs and the lungs purify this blood and forward it to the heart. A thin tube that connects arteries and veins together is called Kashaki. One drop of blood takes about 30 second for passing through artery, veins and kashik to the heart. It is called ‘Circulation of blood’. It goes on continuing in our body.
- By putting hand on the left side of the chest, we can feel heartbeats easily. This type of sound goes on in normal speed. Sound comes one after another. Second sound is faster than first sound and after little interval, first sound comes again then second. In this way, it goes on continuing. After hearing heartbeats carefully, it seems as if sound like lap-dap, lap-dap is coming.
- If an artery is cut due to any reason, red blood is not able to circulate in normal way, but comes out as drops in motions.
- If a vein is cut due to any reason, polluted blood in purple appearance comes out with motion or slowly in normal motion or as drops.
- Artery carries blood to the entire body according to the heart. If blood pressure is much in the heart, the motions blood circulation in the artery will be according to it. So, heartbeats can be known by observing pulse rate.
- Pulse rate becomes irregular or slow due to several reasons like- rheumatic fever, doing hard work physically and mentally, influenza, diseases related with the urinary glands, athiroma, tumors, etc.