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Anatomical illustration highlighting the serratus anterior muscle on the side of the rib cage
Serratus anterior, Wikimedia Commons, CC BY-SA 3.0 Image source

Shoulder girdle

Serratus anterior

Protracts the scapula. assists upward rotation. and helps hold the scapula against the rib cage

Origin
Upper eight or nine ribs
Insertion
Anterior medial border of the scapula
Primary actions
Protracts the scapula. assists upward rotation. and helps hold the scapula against the rib cage

Anatomy source

OpenStax Anatomy and Physiology 2e — Pectoral Girdle and Upper Limbs

Open reference

Educational anatomy reference only. This page does not diagnose pain, injury, or movement limitations.

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