Large round muscle

Synonyms

Latin: M.. teres major

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introduction

The large round muscle can be seen as a protruding "bulge" directly under the skin, especially when doing gymnastics. It lies above the tip of the shoulder blade and takes the form of a three-sided prism.

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Insertion / origin / innervation

Approach: Small tuberosity of the humerus (Crista tuberculi minoris humeri)

Origin: Posterior surface of the shoulder blade (Anglus inferior scapulae)

Innervation: Thoracodorsal nerve, C 5-7

How is the muscle trained / contracted?

Derived from the function, the large round muscle contracts when a weight is pulled towards the body. This is at

• Lat pull
• Back insulator and at
• Rowing the case

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How is the muscle stretched?

As with the stretching exercise for the broad back muscle, the large round muscle is stretched in the knee position. The athlete supports himself with one arm on the floor and tilts his upper body to one side. The trunk is tilted slightly forward.

function

The large round muscle is like the broad back muscle an adductor and Internal rotator at the same time. That is, he pulls the raised one upper extremity to the body, as it is with Kraularmzug is observed.

Furthermore, he takes over the function of Retro version.

You can find information on all forms of movement here in one Overview of forms of movement