Best Answer: Core: white hot Mantle: red hot to white hot depending on depth (molten lava...) Crust: various shades depending on local composition
An example of a simple synovial joint, e.g. a metacarpophalangeal (finger) joint, is shown above-right. More complicated synovial joints may involve more than two bones, may include sesamoid bones e.g. the patella in the knee joint, may include bursae, and may include accessory ligaments.
Examples of synovial joints include the joints in the legs and the temporomandibular joint which joins the skull to the lower jaw. Fibrous joints allow very little movement. The bones are held together tightly by tough, fibrous tissue. Fibrous joints include those that join the bones of the skull together.