Aponeurosis of the Biceps Brachii

Aponeurosis of the biceps brachii muscle: structure and functions

The biceps brachii aponeurosis (lat. a. musculi bicipitis brachii) is an important anatomical structure associated with the biceps brachii muscle. It plays a key role in the functionality and movement of the upper limb.

The structure of the aponeurosis of the biceps brachii muscle is a flat, dense and durable fibrous plate that envelops the muscle and provides a basis for its attachment. The aponeurosis consists of collagen fibers, which provide strength and elasticity to the structure. It has the shape of a pear-shaped leaf and is finely connected to the tissues of the shoulder girdle.

The aponeurosis of the biceps brachii muscle has several important functions. First, it serves as an attachment point for the biceps brachii muscle to the bones of the shoulder girdle. This allows the muscle to flex and extend the shoulder joint, as well as rotate the forearm. Secondly, the aponeurosis provides protection and support to the muscle, preventing it from being overstretched or torn.

In addition, the biceps brachii aponeurosis plays an important role in shaping the contours of the upper limb. It gives the shoulder a more defined shape and contours, which contributes to the aesthetic appearance of the body.

It is important to note that the biceps brachii aponeurosis closely interacts with other muscles, tendons and structures of the shoulder girdle. Together with the biceps brachii muscle, it forms a strong and functional unit that allows you to effectively perform a variety of movements of the upper limb.

In conclusion, the biceps brachii aponeurosis is an important structure that provides support, protection, and functionality to the biceps brachii muscle. Its role in the movement and contours of the upper limb cannot be underestimated. Understanding the anatomy and function of the aponeurosis helps physicians and physical therapists effectively treat and restore shoulder function in patients with injuries or impairments in this area.

Aponeurosis of the biceps brachii muscle

The aponeurosis of the biceps muscle is a continuation of the tendon of the muscle of the same name. It stretches along both teres major, the trapezius groove, and the pectoralis major. The aponeurotic tissue serves as a conduit for blood flow into the brachial artery and veins. Below the clavicular notch, the aponeurotic layer partially covers the mentioned blood vessels, which at the base of the greater tubercle contributes to the closure of the clavicular groove. Approximately at the level of the lateral edge of the greater tubercle, the acromial ligament spreads, forming the apo