Serratus anterior muscle or

PREVIOUS OR MORE MUSCLE SERRATO

SHORT DESCRIPTION

• Dorsi, flattened and quadrilateral.

OCUPA

• It is applied to the lateral chest wall. It goes from the top 10 ribs to the medial border of the scapula.

ORIGIN: 3 servings:

First portion or above:

• triangular face, which occupies the superomedial angle of the anterior surface of the scapula.

Second Portion Portion or Media:

• anterior lip of the medial border of the scapula.

Third portion or lower portion:

• triangular facet, which occupies the inferomedially part of the anterior surface of the scapula.

INSET: 3 servings:

First portion or above:

• Earlier in the lateral edge of the first rib (inconstant).
• external face of the second rib.

Second Portion Portion or Media:

• outside of the 2nd, 3rd and 4th rib.

Third portion or lower portion:

• outside of the 5th to the tenth rib. (Through six distinct fingerings).

INNERVATION :  Nerve Serrato Mayor (Bell Vein Ch.), Brachial Plexus.

FUNCTION

• fixed point on the chest wall anteriorly and laterally displaces (rotational movement) scapula.
• fixed point on the scapula, raises the rib (inspiring becomes).

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