Bone, breast
Bone, breast: Familiar name for what is medically termed the sternum, the long flat bone in the middle of the front of the chest.
The sternum articulates (comes together) with the cartilages of the first seven ribs and with the clavicle (collar bone) to form the middle part of the anterior (front) wall of the thorax (chest).
The sternum consists of three portions: the manubrium (the upper segment of the sternum, a flattened, roughly triangular bone), the corpus or body of the sternum, and the xiphoid process (the little tail of the sternum than points down). These three portions of the sternum arise as separate bones and may fuse partially or completely with one another.
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Bone, calf: Familiar name for the fibula, the lateral (outside) and smaller of the two long bones in the lower leg. The other bone in the lower leg is the tibia. The tibia bears weight; the fibula does not. The fibula articulates (comes together to form a joint) with the tibia above and with the […]
- Bone, carpal
Bone, carpal: One of the wrist bones. There are eight carpal bones that are arranged in two rows. The carpal bones articulate (come together to form a joint) proximally (on their near ends) with the long bones of the forearm — the radius and, indirectly, with the ulna — and distally (on their far ends) […]
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Bone, coccygeal: The small tail-like bone at the bottom of the spine very near to the anus. The coccyx is made up of 3-5 rudimentary vertebrae. It is the lowest part of the spinal column. The word “coccygeal” comes from the Greek “kokkyx” meaning “cuckoo bird.” It got this name because it was thought to […]
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Bone, cranial: Part of the top portion of the skull which protects the brain. The bones of the cranium include the frontal, parietal, occipital, temporal, sphenoid, and ethmoid bones.