Whenever we cut the surface of our skin with any sharp object, blood oozes out.
Blood is a very important fluid in our body. It plays a crucial role in the human circulatory system. It carries life-giving oxygen to every part of our body. The blood is also made up of cells. There are three types of cells that make our blood. The red blood cells (RBCs) are red in color, the white blood cells (WBCs) are white in color, the platelets have a yellowish tinge. These cells float in fluid called plasma. RBCs contain hemoglobin, which stores oxygen and releases it to the body organs. WBCs fight against disease germs that attack our body.
Platelets help blood to clot when we cut our skin. Our blood is of different types too. There are four main types of blood groups, namely A, B,AB and O. The red blood cells dominate our blood stream and when they carry oxygen the color of our blood turns bright red. The original color of our blood is purple brown.
Red Blood Cells, White Blood Cells and Platelets
Red Blood Cells, Oxygen and Carbon Monoxide
My Related Articles