Ulna bone (Ulna)

The ulna or Ulna is the medial and large bone of the forearm that articulates with the radius and humerus on the upper epiphysis and with the carpal bones on the lower epiphysis.

On the upper epiphysis there are the ulnar and coronal surfaces, which serve for attachment of muscles and ligaments. On the lower epiphysis there is a styloid process, which passes into the process of the radius.

The ulna plays an important role in the movement of the arm, providing stability and stability during flexion and extension of the elbow joint. It is also involved in transmitting force from the muscles of the forearm to the hands and fingers.



The ulna bone is one of the largest and most important bones of the forearm. It is the medial bone and connects to the radius and humerus, as well as the carpal bones. The upper epiphysis of the ulna bone has the ulnar and coronoid processes, and the lower epiphysis passes into the styloid process.

The olecranon process is where the ulna bone connects to the shoulder joint. It provides stability and strength to the connection between these two bones. The coronoid process serves to connect to the radius. The styloid process helps in stabilizing the elbow and wrist and also provides mobility in these joints.

The ulna bone plays an important role in the functioning of the forearm, providing stability and mobility during movement. It is also involved in maintaining body balance. Therefore, it is important to monitor the health of this bone and its connections to avoid possible injury and impairment of hand function.



The ulna is one of the three bones of the forearm, which is located between the humerus and the wrist bones and is one of the largest bones in the human body. It is shaped like a curved tube that connects to the bones of the forearm and wrist.

The upper epiphysis of the ulna bone connects to the radius and humerus bones. The lower epiphysis passes into the styloid process, which is part of the wrist. On the top of the bone there are two processes: the olecranon process and the coronoid process.

The ulna plays an important role in the movement and support of the arm. It provides stability and strength to the joint and also helps in the movement of muscles and tendons. In addition, it is an important part of the circulatory system, as arteries and veins pass through it.

The ulna bone can be easily damaged by injuries, especially fractures. However, if the bone heals correctly, it can fully recover. In some cases, if the fracture was very severe, surgery may be required to repair the bone.

It is important to remember that the ulna bone is an important part of the body, and its health can affect the overall health of the body. Therefore, it is necessary to monitor her health and consult a doctor for any problems.