The knee permits the following movements: flexion, extension, as well as slight medial and lateral rotation. Also, the knee has special locking and unlocking mechanisms, related to movement by the femoral condyles on the tibial plateau.
H&E stain. Bile or gall is a dark green to yellowish brown fluid, produced by the liver of most vertebrates, that aids the digestion of lipids in the small intestine. In humans, bile is produced continuously by the liver (liver bile), and stored and concentrated in the gallbladder (gallbladder bile).
Throwing Up Yellow Bile. Bile is a normal product that is produced by your body. It can occur due to an infection, dehydration or another problem. Bright yellow bile is often produced early in the morning, but it does not have to be a sign of a major concern.