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An overview of elbow joint anatomy

An overview of elbow joint anatomy

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The elbow joint is known as the synovial joint that is in between the forearm and upper limb. This joint consists of three bones which is a point of articulation. The elbow joint is free moving joint. Here we will know what exactly is elbow joint anatomy.

Each of the bones is covered in a layer of Hyaline cartilage. The elbow joint can move smoothly because of the synovial fluid. This fluid is similar to a lubricant that ensures flexible movement. Now, the anatomy of this joint is essential to the human body. Therefore, let us see an overview of this joint and its functions. 

Image by IAOM-US from Pixabay 

The structure of elbow joints 

The three main bones located in the area are ulna, radius and humerus. The three bones help in the functioning of two joints. 

  • Humeroulnar joint

The Humeroulnar joint is located in between the trochlea. In the medical view, it is in the far end of the humerus and the proximal ulna consists of the trochlea notch. 

  • Humeroradial joint

It is a joint located a bit away from the humerus and its head of radius. Also, it is in between capitulum.

The elbow joint is also known as a hinge joint because the Humeroulnar and Humeroradial joints have the hinge properties. At the elbow, joint there is also ulna and radius in the proximal. The elbow joint has rotational movements because of the proximal radioulnar.

The important-factors of elbow ligaments

Several ligaments provide a structure to the bones of the elbow joint.  Each ligament in the collection offers stability to the elbow joint. The humeroradial and humeroulnar contain ligaments that connect them to the joint. 

  1. Ulnar collateral ligament

The ulna is the main ligament in the elbow joint. The shape of this ligament is triangle and it also contains three parts known as an inferior band, posterior and anterior. 

  • Radial collateral ligament

The radial ligament is yet another crucial element in the elbow joint. It is connected a bit low from the lateral epicondyle. The radius of the ligament is enclosed by distal fibre and the annular ligament. Some of the other fibres in the ligament are supinator and Radialis Brevis. 

  • The annular ligament 

The annular ligament holds the ulna and radius joins in the proximal articulation. Another ligament in this joint is quadrate. The task of this quadrate joint is to maintain constant pressure during the movement of forearms. 

Conclusion 

The analogy of the elbow joint is vast. However, you can get a glimpse of its structure from the above points. 

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