| Anterior axillary fold | |
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| Front of right upper extremity. (Anterior axillary fold not labeled, but visible at right. ) | |
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| Deep muscles of the chest and front of the arm, with the boundaries of the axilla. | |
| Gray's | subject #289 1328 |
| Dorlands/Elsevier | f_11/12371050 |
The lower border of Pectoralis major forms the rounded anterior axillary fold. surface anatomy of the Head and Neck ( Bones External occipital protuberance Superior Elsevier, the world's largest Publisher of Medical and Scientific literature, forms part of the Reed Elsevier group The Pectoralis major (popularly known as pecs) is a thick fan-shaped muscle situated at the upper front ( Anterior) of the Chest wall
Some sources also include the pectoralis minor. The Pectoralis minor is a thin triangular muscle situated at the upper part of the Chest, beneath the Pectoralis major. [1]