Biliary tree | Gastrointestinal system physiology | NCLEX-RN | Khan Academy

– [Voiceover] I think we have a pretty good idea of how the liver works. One of the things I kinda touched on when we talking about our hepatic lobule is that we have bile that’s produced in the liver and flows out through the common hepatic duct. Now bile is composed of two things. […]

The bronchial tree | Advanced respiratory system physiology | Health & Medicine | Khan Academy

So here’s a little person, and I’ve drawn their face, and you can see in blue at the bottom I’ve drawn their voice box, and I’m going to show you exactly what happens when you draw a little molecule like this of oxygen and to follow it along it’s journey. So it’s going to be […]