OCR B7 - Blood and the circulatory system

Blood and the ciculatory system.

 Well, blood is a fluid made up of cells, platelets and plasma. Your blood carries different substances around the body through the Cicrulatory system. For eg. Blood carries Oxygen (O2) and Glucose to the muscles. It also takes Carbon Dioxide (CO2 - a waste product) away from them.

Blood is made up of different things, One of the things is RED BLOOD cells. These transport the oxygen from the lungs to the rest of the body. They do not have a nucleus so they can be filled with haemoglobin. This is a substance…