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The anatomy of the human female breast contains various tissues and structures. One of the primary functions of the breast is milk production. Learn about breast ducts, muscles, and blood vessels in this slide show from the Mayo Clinic.
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' Rooster Comb ' Shots FDA-approved
Q: What is this I hear about using some type of "rooster comb" to inject into the knee joints for arthritis?
A: Osteoarthritis (degenerative joint disease) - also "wear and tear" arthritis - is common in the knees of the middle-aged and older, perhaps to millions of people worldwide. The normally smooth, shiny cartilage surfaces of the joint start to wear and there is a compromise of lubricating joint fluid. The process you are referring to is called viscosupplementation, and involves injecting hyaluronic acid to act as a joint lubricant. This is a natural-occurring substance found in normal joint fluid. The early form of the drug was actually manufactured from rooster combs - hence, the layman's term. Much of it now is synthetically manufactured.