Paul Andersen surveys the circulatory system in humans. He begins with a short discussion of open and closed circulatory systems and 2,3, and 4-chambered hearts. He describes the movement of blood through the human heart and the blood...

In this video, I talk about the components found in the blood and their functions. We are going to talk about the Complete Blood Count (CBC) test that your doctor orders, red and white blood cells, platelets, and proteins like albumin,...

The video discusses why human blood is red in color, explaining the role of hemoglobin and the high ratio of red blood cells to white blood cells in the composition of blood. It also touches on the different pigments that give animal...