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).
Bile contains bile salts, fatty acids, cholesterol, bilirubin, and other compounds. The components of bile are synthesized and secreted into bile ducts within the liver itself and bile is then sent to the small intestine. There are many causes of bilirubin in urine: Blockage of bile ducts due to gall stones.