The pectoralis major is a major muscle in which region of the body?

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Multiple Choice

The pectoralis major is a major muscle in which region of the body?

Explanation:
The pectoralis major is located in the chest region, on the front of the thorax. This large muscle sits on the anterior chest wall, extending from the sternum and clavicle toward the upper arm. Because its bulk is on the front of the chest, its regional name is the chest, and its actions—like pushing or bringing the arm toward the body—reflect its position there. It isn’t part of the arm, back, or abdomen, which involve different regions and muscle groups.

The pectoralis major is located in the chest region, on the front of the thorax. This large muscle sits on the anterior chest wall, extending from the sternum and clavicle toward the upper arm. Because its bulk is on the front of the chest, its regional name is the chest, and its actions—like pushing or bringing the arm toward the body—reflect its position there. It isn’t part of the arm, back, or abdomen, which involve different regions and muscle groups.

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