What is the color of human blood? Red, Blue, Green?
Ever wondered, if our blood is red in color, then why our veins are blue? Is blood sometimes blue, sometimes red? Moreover, we have heard of white blood cells also then why isn’t our blood white in color? Too much confusion!! Isn’t it? What is blood? Blood is a fluid that flows throughout our body. It has three basic components: Red Blood cells (RBCs) : They carry oxygen from our lungs to rest of our body and takes carbon dioxide back to the lungs to be exhaled. White blood cells (WBCs) : In simple language these are the weapons of our body for fighting against viruses and bacteria. Platelets : They come together when we have some injury so that we don’t lose much of our blood. They help our body form clots to stop bleeding. Plasma is a liquid that holds these three together. The answer to our first question lies in the amount of these cells in our blood. Since the ratio of WBCs to RBCs is very low, therefore, blood is not white in color. But that partially answers our question.