Bozeman Science
The Circulatory System
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...
Catalyst University
Basics & Structures of the Lymphatic System
This video is an overview of the major players in the lymphatic system. We also discuss selective fluid drainage via the thoracic duct and the right lymphatic duct.
Catalyst University
The Appendix & Basics of Tonsils and Peyer's Patches
In this video we discuss in detail the functions of the vermiform appendix (or simply, appendix) and the process of developing an appendicitis. At the end, we briefly mention two other secondary lymphoid structures (tonsils and Peyer's...
Let's Tute
Why is Blood Red?
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...