4. The option which is not a function of the muscular system that helps the body maintain homeostasis (equilibrium) is hematopoiesis. That is the formation of blood cellular components, so it doesn't belong to the muscular system.
5. A chronic, nonprogressive condition of pain in the muscles, tendons and ligaments is fibromyalgia. It is heightened pain response to pressure and it is widespread over the body.
6. A bicep brachii, as well as bicep femoris, both have 2 muscle origins.
