General Anatomy

The forearm mainly consists of two relatively parallel bones, the and also numerous muscles, vessels and nerves, which will be explained in the following. The forearm is connected to the upper arm by three different joints and to the hand via the wrist.

Elle= ulna and the
Spoke= radius

The ulna consists of a small hole in the middle of the bone, which serves as an opening for vessels that feed the bone.

The proximal end at the elbow joint is formed by the olecranon. This is the hooked process of the ulna and forms the elbow joint. The olecranon can be felt well at the elbow as a pointed bony extension.

On the front side of the ulna, the bone is roughened as on the upper arm (tuberosity ulnae) and serves as a starting point for various muscles. The distal end of the ulna, facing the wrist, is called caput ulnae and is part of the wrist. Like the ulna, the radius has a distal (distal to the body) and a proximal (near the body) end.

The radius is divided into three parts. At the transition between the neck of the bone and the bone body, there is a bony protrusion which serves as a starting point for the biceps brachii muscle of the upper arm. There is also a rough surface in the middle of the spoke, which is called the pronator tuberosity and serves as the attachment surface for the pronator teres muscle.

The distal end of the spoke is thickened and forms various bony furrows for the tendons of the long extensor muscles. Some of these furrows are easy to feel.

Ulna shaft, the bony main part and both ends of the bone,
The extremity proximalis, located to the elbow joint, and the
Extremitas distalis, which lies to the wrist and is also called the ulnar head (caput ulnae).
The head part borders on the upper arm and is called Caput radii, to which
The neck part, collum radii, on. This is adjacent to the
Main part of the spoke, the corpus radii.
Hand bones as well as with the adjacent
Elle one articulated connection each.