Parts Of The Arm Bone Diagram. The elbow joint is actually composed of three separate joints. The humerus is the upper arm bone.
You can read more detail about these important bones in the arm from the following. The upper arm consists of one bone and the forearm of two. This is a long bone that helps in supporting and moving the upper arm.
In this article we shall look at the anatomy of the muscles of the upper arm their attachments.
Moving down toward the distal side the shaft tapers gradually 8 and has three prominent surfaces and three borders the anterior posterior interosseous borders and the anterior posterior medial surfaces 3. Anatomy of bones of the arm. Bone diagram forehead frontal bone nose bones nasals cheek bone zygoma upper jaw maxilla lower jaw mandible breast bone sternum upper arm bone humerus lower arm bone ulna thigh bone femur collar bone clavicle toe bones phalanges ankle bones tarsals kneecap patella shin bone tibia calf bone fibula foot bones. The bones are held together with ligaments that form the joint capsule.