Minor Pectoral Muscle

Pectoralis MINOR

SHORT DESCRIPTION

• lean, flat and triangular muscle.
• It is covered by the pectoralis major muscle.

OCUPA

• Located below the subclavian muscle. Forming a triangular space with this internal database called clavipectoral space.

ORIGIN

• top edge and side face of the third, fourth and fifth ribs near the costal cartilages.

INSERTION

• anterior medial border of the coracoid process, or the upper face of said process.
• By a flattened tendon.

INNERVATION :  Nerve pectoralis minor, Brachial Plexus

FUNCTION

• fixed point in the ribs, shoulder down the stump.
• fixed point on the scapula, elevates the ribs (acting as inspiring muscle)