Transverse humeral ligament

The primary function of the transverse humeral ligament is to maintain the proper positioning of the biceps tendon as it moves during shoulder activities. By securing the tendon in the intertubercular groove, it prevents excessive movement or dislocation of the tendon that could lead to injury or dysfunction. This stability is vital during actions such as lifting, throwing, and any activities that involve a wide range of shoulder movements. The ligament also plays a role in coordinating the action of the biceps muscle, ensuring effective force transmission between the muscle and the arm, contributing to overall upper limb mechanics and performance. Without this ligament, the tendon could become prone to impingement or rupture, which underscores its importance in shoulder health.

The transverse humeral ligament is located in the shoulder region, specifically at the proximal end of the humerus. It stretches across the intertubercular groove, connecting the greater and lesser tubercles of the humerus. This positioning places the ligament in close proximity to critical structures such as the glenohumeral joint and the surrounding muscles and tendons of the shoulder. Its orientation allows it to effectively support the biceps tendon as it travels to the shoulder joint, thus playing an essential role in shoulder stability and function.

• The transverse humeral ligament is often overlooked in discussions of shoulder anatomy but is pivotal for biceps tendon function.
• Injuries to the transverse humeral ligament can contribute to shoulder instability and pain, making it an important focus in shoulder rehabilitation.
• This ligament can undergo changes with age or repetitive stress, affecting shoulder mechanics and possibly leading to conditions such as tendinitis.