Head of the Ulna

The head of the ulna is one of the most important elements of the elbow joint. It is located at the distal end of the ulna and provides the connection between the radius and ulna. The head of the ulna is spherical in shape, allowing it to slide easily over the radius and provide smooth movement of the forearm.

The ulnar head also plays an important role in maintaining the stability of the elbow joint and protecting it from injury. It provides a connection between the radius and other bones of the forearm, such as the ulna and humerus, and helps maintain proper elbow alignment.

In addition, the head of the ulna is involved in transmitting force from the muscles of the forearm to the hand. When the muscles contract, they transmit their force to the head of the ulna, which in turn transmits this force to the ulna and then to the radial joint.

Thus, the ulnar head plays a key role in the functioning of the elbow joint, providing stability and transmitting force. It is also an important anatomical structure that maintains the correct position of the elbow joint and protects it from injury.

The head of the ulna is the anterior part of the head of the radius, equipped with an articular surface and apex. The articular surface, due to the shape of the head of the ulna and the articular surfaces of the radius and humerus, allows them to articulate in three planes. The connection of the radial head with the surface of the ulnar neck is very tight. The head of the radius remains motionless when the bones of the forearm move in the elbow joint.

The arterial blood supply to the head of the wrist bone comes from the radial artery. Venous drainage occurs through the deep radial vein. The nerves passing through Galen's canal include the median nerve, which forms the Hyan's canal on the back of the elbow joint, and the superficial peroneal nerve. Small holes are also located in the lower epiphysis of the radius around the neck and on the lateral side between the head of the ulna and the deep radius.

The head of the ulna (ulna) is an anatomical part of the front and back sides of the bone, located at its origin and serving for articulation with the bones of the forearm, including the radius and radius. The head is round and has a smooth surface. It is connected to the scapula of the arm through the ulnar cavity. The head is a special part of the human body for this joint and connects to the spinous neck of the ulna, which is located in the back of the head. This shin is directed inward, which allows it to rotate in the direction away from the fingers, and outward, toward the frame of the wrist and the spot of the thumb. The elbow joint contains synovial fluid, which creates a lubricant between the bone and the intra-articular bursae. This joint is normal, but it can have various diseases, such as arthrosis of the elbow joint, gout or other pain in this joint associated with injuries, from