Serratus anterior muscle
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The serratus anterior is a muscle of the chest. It originates at the side of the chest from the upper 8 or 9 ribs; it inserts along the entire length of the anterior aspect of the medial border of the scapula. It is innervated by the long thoracic nerve from the brachial plexus. The serratus anterior acts to pull the scapula forward around the thorax.
Serratus anterior muscle
Serratus anterior muscle. Anterior thoracic wall. External abdominal oblique muscle. Deep dissection, anterior view.
Clearly visible serratus anterior muscle of the artistic gymnast Calvin Currie during preparation of the parallel bars at the Austrian Future Cup in Linz.
Anatomical terms of muscle
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Anatomical terminology is used to uniquely describe aspects of skeletal muscle, cardiac muscle, and smooth muscle such as their actions, structure, size, and location.
The biceps flexes the lower arm. The brachioradialis, in the forearm, and brachialis, located deep to the biceps in the upper arm, are both synergists that aid in this motion.
The seven general types of skeletal muscle