Sex hormones including the androgens such as testosterone and the estrogen. It is all part of the endocrine system. https://www.AnimatedAnatomy.com/ ◄◄◄Click To Buy Our Anatomical Software And Lessons I mentioned all the hormones produced by these organs. Here I mentioned testosterone, aldosterone, renin. However the main part was to explain Angiotensinogen and how it become angiotensin 2 out of angiotensin 1. http://www.biodigitalhuman.com/. Music. Easy Lemon 60 Second by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/…) Source: http://incompetech.com/music/royalty-… Artist: http://incompetech.com/ Continue Life by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/…) Source: http://incompetech.com/music/royalty-… Artist: http://incompetech.com/ Breast Anatomical Illustration: Original author: Patrick J. Lynch. Reworked by Morgoth666 to add numbered legend arrows. – Patrick J. Lynch, medical illustrator This file is licensed under the Creative Commons Attribution 3.0 Unported license. Please, subscribe to get our newest videos and lessons: http://www.youtube.com/subscription_c… My Facebook fan page: https://www.facebook.com/FahriceDjozic3