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.
The ones that are â¦ in the fingers themselves are called interphalangeal joints. The thumb only has one called a proximal interphalangeal joint (PIP) and the other four fingers each have two. The first one is called the proximal interphalangeal joint (PIP)and the last one is the distal interphalangeal joint (DIP.t is the Hinge Joint. they are called proximal interphilangeal joints. The joint of the finger can be called the knuckle or saddle joint for the thumb. Hope that helped. hinge joints. Synovial joints. 1  The joint of the finger can be called the knuckle or saddle joint for the thumb. 2  Hope that helped.