Which of the following statement is true about heart? 1 point Left atrium receives oxygenated blood from different parts of body Left ventricle pumps oxygenated blood to different body parts Right ventricle pumps oxygenated blood to different body parts Left atrium transfers deoxygenated blood to the lungs
Answers
Hint - There are two type of circulation: Pulmonary circulation and Systemic circulation. Right side of the heart transfers blood from the body to the lungs and the left side of the heart transfers blood from the lung to the body.
Part 1 - Heart
Heart is the blood pumping organ that pumps the blood throughout the body with the help of blood vessels of the circulatory system.
The heart is divided into two halves: right and left. Both the halves have 1 atrium (upper chamber) and 1 ventricle (lower chamber) each.
Part 2 - Blood circulation through the heart
The right atrium of the heart receives deoxygenated blood from the body.
The right atrium transfers the blood into the right ventricle from where the right ventricle contracts and pumps the blood into the lungs through the pulmonary artery.
The blood gets oxygenated inside the lungs
The left atrium receives the oxygenated blood from the lungs through the pulmonary veins.
The left atrium then contracts and sends the blood the into the right ventricle.
The oxygenated blood transports to the entire the body from the right ventricle through the aorta.
Part 3 - Conclusion
From the above discussion, we can conclude that statements given (i) and (iii) are wrong. The statement (ii) and (iv) are conceptually correct.
Final step - The correct sequence of the blood flow through the body is Body → Right atrium → Right Ventricle → Lungs → Left atrium → Left ventricle → Body.