Where does the pectoralis minor originate?

Where does the pectoralis minor originate?

• A. Ribs 1 and 2
• B. Clavicle
• C. Scapula
• D. Ribs 3, 4, and 5

Answer: (D)

The pectoralis minor starts from the front of the chest wall on the ribs, specifically from the anterior surfaces of ribs three through five near their costal cartilages, and it ascends to insert on the coracoid process of the scapula. This rib-based origin distinguishes it from muscles that originate on the clavicle or the scapula itself. That’s why ribs three to five are the correct origin.

The pectoralis minor starts from the front of the chest wall on the ribs, specifically from the anterior surfaces of ribs three through five near their costal cartilages, and it ascends to insert on the coracoid process of the scapula. This rib-based origin distinguishes it from muscles that originate on the clavicle or the scapula itself. That’s why ribs three to five are the correct origin.