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.
Shape of synovial joint: condyloid joint. knuckle-like -egg shapped articular surface of one bone fits into an oval concavity in another-allow 2 types of movement-back and forth (flexion-extension) -side to side (abduction-adduction) bone cannot rotate around its long axis-biaxial (movement occurs around two axes).contained in synovial joints-disc of fibrocartilage-occur in the temporomandibular (jaw) joint, stenoclavicular joint, knee joint, more-occurs in joints where articulating bone ends have different shapes-allow two different movements at the same time.