Kerala PSC - Biology - Human Body (Circulatory System)

Friday, September 02, 2016

Heart, blood vessels and blood are parts of the circulatory system.
Food materials, respiratory gases and excretory products are transported by blood.
Heart has four chambers. It acts as a double pump, receiving oxygenated blood from the lungs and sending it to the different parts of the body and receiving de-oxygenated blood from the body and sending it to the lungs.
The blood vessels that carry blood from heart to different parts of the body Arteries
The blood vessels that carry blood to the heart Veins
Hemoglobin contained in red blood corpuscles absorbs oxygen. Hemoglobin gives red colour to blood.
Vitamins B12 and Folic acid are important in the formation of red blood corpuscles. Vitamin K is essential for the clotting of blood.
Haemophilia is a hereditary disease.