explain about heart....?
Answers
Heart:
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.
The heart has four chambers:
The right atrium receives blood from the veins and pumps it to the right ventricle.
The right ventricle receives blood from the right atrium and pumps it to the lungs, where it is loaded with oxygen.
The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle.
The left ventricle (the strongest chamber) pumps oxygen-rich blood to the rest of the body. The left ventricle’s vigorous contractions create our blood pressure.
hope it's help u...
Explanation:
Heart is the organ present between our lungs which performs the function of pumping blood in our body through blood vessels.
In humans it consists of 4 chamber which are right auricle or right artrium, right ventricle, left auricle or left artrium and left ventricle.
Right auricle: Upper chamber at the right side of heart that recieves deoxygenated blood from vena cava.
Right ventricle: Lower chamber at the right side of heart that recieves deoxygenated blood from right auricle.
Left auricle: Upper chamber at the left side of heart that recieves oxygenated blood from lungs through veins.
Left ventricle: Lower chamber that recieves oxygenated blood from left auricle and Pumps it to body parts.
Septum: Partition that separates left and right side of heart.
Tricuspid valve: Valve present between right auricle and right ventricle that allows the flow of blood from auricle to ventricle.
Bicuspid valve: Valve present between left auricle and left ventricle that allows the flow of blood from auricle to ventricle.
Pulmonary Artery: Artery that transport deoxygenated blood from right ventricle to lungs.
Pulmonary Vein: Vein that transport oxygenated blood from left ventricle to all the parts of body.
Working of heart:
During Transportation right auricle recieves deoxygenated blood from body parts through superior and inferior vena cava.
Then this deoxygenated or Co2 rich blood passes to right ventricle through tricuspid valve.
Right ventricle Transport it to the lungs through pulmonary Artery.
Lungs then exhale Co2 and inhaler O2.
This Oxygenated or Oxygen rich blood is then sent to left auricle through pulmonary Vein.
Then the blood is sent to left ventricle through bicuspid valve.
Left ventricle then Pumps the Oxygenated blood to all the parts of body.
Then our body Cell utilize the O2 and convert it into Co2 and then this cycle repeats.
As the blood passes through heart twice this type of Circulation is also called double Circulation.