Saved Bookmarks
| 1. |
How transpiration of blood taking place in our body |
| Answer» Most of the nutrients, waste products, useful gases, etc are carried by our blood. Thus, this blood needs to be pushed to each and every corner of the body, that too continuously. This job of pumping the blood around the body is done by our heart!The heart is a muscular organ which is as big as our fist.Now, since both oxygen and carbon dioxide have to be transported by the blood, the heart has different chambers to prevent the oxygen-rich blood from mixing with the blood containing carbon dioxide.1. The oxygen-rich blood from the lungs comes to the upper-left chamber of the heart, the left atrium. The left atrium relaxes when it is collecting this blood and then contracts, while the next chamber, the left ventricle, expands, so that the blood is transferred to it. When the muscular left ventricle contracts in its turn, the blood is pumped out to the body.2. De-oxygenated blood comes from the body to the upper – right chamber, the right atrium, as it expands. As the right atrium contracts, the corresponding lower chamber, the right ventricle, dilates. This transfers blood to the right ventricle, which in turn pumps it to the lungs for oxygenation. | |