What is the origin of the pectoralis minor?

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Multiple Choice

What is the origin of the pectoralis minor?

Explanation:
Origin refers to where the muscle begins on the skeleton. The pectoralis minor originates from the anterior surfaces of the third to fifth ribs, near their costal cartilages. From there, its fibers sweep upward to insert on the coracoid process of the scapula. This placement explains its actions: it depresses and protracts the scapula and helps stabilize it against the thoracic wall; when the shoulder girdle is fixed, it can assist with elevating the ribs during deep inhalation. The clavicle, first two ribs, or sternum are not attachment sites for this muscle, which is why those options don’t fit.

Origin refers to where the muscle begins on the skeleton. The pectoralis minor originates from the anterior surfaces of the third to fifth ribs, near their costal cartilages. From there, its fibers sweep upward to insert on the coracoid process of the scapula. This placement explains its actions: it depresses and protracts the scapula and helps stabilize it against the thoracic wall; when the shoulder girdle is fixed, it can assist with elevating the ribs during deep inhalation. The clavicle, first two ribs, or sternum are not attachment sites for this muscle, which is why those options don’t fit.

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