Blood, Part 1 - True Blood: Crash Course Anatomy & Physiology #29

Now that we've talked about your blood vessels, we're going to zoom in a little closer and talk about your blood itself. We'll start by outlining the basic components of blood -- including erythrocytes, leukocytes, platelets, and plasma -- as well as the basic process of hemostasis that stops bleeding, and how antigens are responsible for the blood type that you have. By the end of this episode, you should be totally prepared for your next blood drive. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters: Introduction: Let's Talk Blood 00:00 How Blood Donation Works 2:00 Blood Components: Erythrocytes, Leukocytes, Platelets, and Plasma 3:00 Plasma - Electrolytes 3:38 Plasma Proteins 4:03 Hemostasis: How Bleeding Works 4:30 Antigens & Blood Types 6:21 Review 9:05 Credits 9:32 *** Crash Course is on Patreon! You can support us directly by signing up at   / crashcourse   Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark, Jan Schmid, Simun Niclasen, Robert Kunz, Daniel Baulig, Jason A Saslow, Eric Kitchen, Christian, Beatrice Jin, Anna-Ester Volozh, Eric Knight, Elliot Beter, Jeffrey Thompson, Ian Dundore, Stephen Lawless, Today I Found Out, James Craver, Jessica Wode, Sandra Aft, Jacob Ash, SR Foxley, Christy Huddleston, Steve Marshall, Chris Peters -- Want to find Crash Course elsewhere on the internet? Facebook -   / youtubecrashcourse   Twitter -   / thecrashcourse   Tumblr -   / thecrashcourse   Support Crash Course on Patreon:   / crashcourse   CC Kids:    / crashcoursekids