These ligaments attach to the inner surface of the breast skin on one end and the pectoralis muscles on the other.

它们的一端连接在乳房皮肤内表面，另一端固定在胸大肌上。

They are formed from tenderloin, the pectoralis minor muscle, found beneath the breast but smaller and thinner.

它们由里脊形成，胸小肌位于乳房下方，但更小更薄。