Small pectoralis muscle
Last reviewed: 23.04.2024
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The small pectoral muscle (m. Pectoralis minor) is flat, triangular in shape, located directly behind the large pectoral muscle. The muscle begins on the II-V ribs, near their anterior ends. Heading upwards and laterally, it is attached by a short tendon to the coracoid process of the scapula.
Function: tilt the blade forward. With a strengthened shoulder girdle, he raises his ribs, contributing to the expansion of the thorax.
Innervation: medial and lateral thoracic nerves (СVII-ThI).
Blood supply: pectoral artery, anterior intercostal branches of the internal thoracic artery.
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