You are a doctor treating a patient who has recently experienced paralysis in his lower body. He asks you to give him more information about the use of adult stem cells and embryonic stem cells as possible treatments.
In your explanation, you must use the words “pluripotent” and “multipotent”. You should also list two advantages and two disadvantages of each.
Answers
Explanation:
Functioning of Heart
1. Impure blood from the body enters the right auricle through inferior & superior vena cava
2. From the auricle the blood is pumped into right ventricle passing through tricuspid valve
3. Now the ventricle contracts and pump blood into pulmonary artery.
4. The pulmonary artery bifurcates and branches into each lungs
5. In the lungs the blood gets oxygenated and is collected by pulmonary vein.
6. Pulmonary vein carries blood to the left auricle.
7. The left auricle contracts to pump blood into left ventricle through bicuspid valve.
8. From the left ventricle the pure blood is pumped into aorta, which carries it to various parts.
Pulmonary and Systemic Circulation
Pulmonary Circulation: It deals with the purification of deoxygenated blood. It involves pumping of
impure blood from right ventricle to lungs, through pulmonary artery and returning of pure blood
from lungs to left auricle through pulmonary vein.
Systemic Circulation: It deals with the supply of pure blood to all the parts of body ,it includes the
pumping of pure blood from left ventricle to all parts of body through aorta ,and return of impure
blood from all the parts of body to right auricle ,through superior & inferior vena cava.
Double Circulation: A circulatory system in which the blood travels twice through the heart in one
complete cycle of the body is called double circulation. It includes both pulmonary and systemic
circulation.