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).
How to Improve Bile Production. Bile is a thick digestive fluid stored in the gall bladder. It is used to break down fats during digestion and turn them into fatty acids -- a substance which can be absorbed by the digestive tract. Bile is largely made up of cholesterol, bile salts, water and bilirubin, a product of red blood cells.