Write about facts of blood
Answers
Explanation:
1. Nearly 7% of the body weight of a human is made up of blood.
2. Platelets, white blood cells and red blood cells are present in blood.
3. Blood consists of a yellow liquid which is known as blood plasma.
4. Blood plasma is primarily made up of water. 90% of blood plasma is water.
5. Blood plasma also consists of hormones, glucose, proteins, gases, electrolytes and nutrients.
6. Platelets, white blood cells and red blood cells are all found floating in blood plasma.
7. Blood plasma can be separated using centrifuge device which spins blood at a very high speed. The cells then get collected at the bottom of the tube, separating blood plasma from the cells.
8. Only the red blood cells in our blood are responsible for carrying oxygen.
9. Red blood cells consist of hemoglobin. Hemoglobin is actually a protein that contains iron. Oxygen combines with this iron and gives the characteristic red color to our blood as well as hemoglobin.
10. Unlike red blood cells, the white blood cells in our blood form the defensive system of our body. These white blood cells are responsible for fighting viruses, bacteria and other infectious diseases. They also fight cancer cells and other unwanted material that enter human body.
11. Platelets are completely different and are responsible for blood clotting whenever bleeding occurs because of a cut or bruise. This prevents unwanted loss of blood.
12. While blood clotting is meant for good, it can become dangerous. If blood clots in blood vessels of heart, one can experience heart attack. Similarly, blood clot in brain can lead to stroke.
13. Blood is not just responsible for carrying oxygen to different parts of the body. It also carries nutrients to body cells. At the same time, it also carries away unwanted waste material away from the cells.
14. Blood pressure is actually the pressure exerted by blood on blood vessel walls. BP is a vital sign of life.
15. High BP implies increased risk of stroke and heart attack.
Answer:
uses ofblood transporting oxygen and nutrients to the lungs and tissues. forming blood clots to prevent excess blood loss. carrying cells and antibodies that fight infection. bringing waste products to the kidneys and liver, which filter and clean the blood.
Explanation:
Blood is made mostly of plasma, but 3 main types of blood cells circulate with the plasma:
Platelets help the blood to clot. Clotting stops the blood from flowing out of the body when a vein or artery is broken. ...
Red blood cells carry oxygen. ...
White blood cells ward off infection. mark the answer brainlist if the answer is corrcet