Proximal wrist joint
The proximal radiocarpal joint is the largest joint in the humeral-radial region. It connects the posterior surface of the ulna to the medial surface of the radius. It is a constricted joint that cannot be extended or flexed and is subject to limited extension ability of the elbow joint. The joint provides limited extensor ability of the ulnar nerve as it conducts the muscle tendons to the base of the palm.
The joint consists of the head of the radius, the neck, two flat bones (the lateral and medial radial epiphyseal surface, the lateral two-layer articular surface and the circumferential radial deltoid surface). Together they are covered with cartilage. The head of the radius has
The radioulnar procoxalia joint is responsible for performing basic movements at the elbow. The distal radial segment provides articulation with the radius, which forms an opening in the joint capsule. It also contains the Gila ligament, which connects the ulna and radius bones, protecting the joint from damage.
The function of the radioulnar joint of the proximal segment is to ensure free rotation of the forearm around the transverse axis. Additionally, it allows the ulna to move with the forearm as the arm moves up or down. This joint is involved in flexing the wrist and lifting objects from a low position. However, the load on the radioactive joint of the proximal segment is insignificant, since this movement is not performed during normal human movements.
Thus, the joint of the proximal segment is an important element of the elbow complex. It performs the function of fixing the supraradial bone, protects against damage to the Gilot ligament, and ensures the movement of the forearm relative to the ulna. The importance of the proximal radial segment is that it provides the main range of movements in the radiolutrous joint complex, which is important for the normal functioning of the hand. Therefore, if the proximal radial joint is damaged or injured, the function of the entire arm can be negatively affected.
Introduction.
The radioulnar joint is one of the most common joints in the human body. It provides movement of the hand, fingers and forearm. The radial joint is the proximal joint that connects the lunar bone to the ulna. In this article we will look at the structure and function of the proximal radioulnar joint. We will also look at the anatomical features of the radial joint and its importance to the health and functioning of the human body.
Anatomical description. From an anatomical point of view, the proximal radioulnar joint is a complex joint between the lunate and ulna. It consists of two end surfaces: the socket and the ulnar rib. Both of these surfaces are covered with cartilage, which provides a soft surface for the bones to touch and improves the sliding of the bones against each other. Inside the joint is a cavity filled with synovial fluid, which provides lubrication and flexibility to the radial joint.
Each end of the radius is supplied by blood vessels and nerves. Additionally, joints are surrounded by other bones and tendons that add to their functionality. The radial joint allows for circular movements of the wrist and fingers, allowing a person to do many different things.
It is important to note that the radial joint has