The principal function of the humerus is as a muscular insertion and origination point for a number of muscles, including the deltoid and pectoralis major. Since it is connected to the shoulder via a rotational joint, the humerus also supports the arm's various physical functions, such as lifting.Know More
The humerus is the long bone of the upper arm, connecting the elbow and the shoulder via the ulna and scapula respectively. The brachial artery travels the length of this bone before subdividing into the ulnar and radial arteries at the elbow. It is also traversed by the radial nerve, which facilitates the arm's and forearm's sensory and motor functions.
The humerus is one of the longest and most frequently damaged bones in the human body.Learn more about Bones
As explained by About.com, red bone marrow’s primary job is to produce blood cells. Red bone marrow produces two types of stem cells. Myeloid stem cells develop into red blood cells, platelets or myeloblast cells, which in turn develop into a type of white blood cell called a granulocyte. Lymphoid stem cells turn into lymphoblast cells, which eventually develop into another type of white blood cell called a lymphocyte.Full Answer >
The radius is the shorter of the two long bones of the forearm, the other being the ulna. It extends from the elbow to the wrist, and is the bone on the thumb side of the arm. It rotates around the ulna and enables the hand to rotate and be flexible.Full Answer >
Small holes in the surface of a bone's structure are most likely to be Volkmann canals, according to Augusta Technical College. Volkmann canals carry blood vessels and nerve structures from the surface to the inside of the bone.Full Answer >
According to the BBC Science and Nature, the human arm consists of three long bones, known as the humerus, in the upper arm, and the ulna and the radius in the lower arm. Of these, the humerus is the thickest.Full Answer >