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6 Σεπ 2024 · It contains four muscles that exert a force on the upper limb: the pectoralis major, pectoralis minor, serratus anterior and subclavius. In this article, we shall look at the anatomy of the muscles of the pectoral region – their attachments, actions and innervation.
- Shoulder Region
The muscles of the shoulder are associated with movements at...
- Shoulder Region
3 Νοε 2023 · The pectoralis major muscle is a broad superficial muscle found superficially in the anterior chest wall. In males, it is covered by the deep layer of fascia, subcutaneous tissue and the adjacent skin. In females, it is covered by the breast.
Pectoralis major, pectoralis minor, subclavius, and serratus anterior. 10/0V2014 . Pectoralis major. Origin: 1. Clavicular head; from the front of the medial third of the clavicle 2. Sternocostal head; from the anterior aspect of the sternum and the upper six costal cartilages
The pectoralis minor is a small triangular mus-cle which arises from the third, fourth, and Þ fth ribs under the cover of pectoralis major. It inserts via a short thick tendon onto the upper surface and medial border of the coracoid process. 30.2 Laminae Many articles describe the pectoralis major ten-
12 Σεπ 2018 · The pectoralis major is a large, flat muscle of the pectoral girdle of the upper limb. It has a fan-shaped appearance with three heads or portions: the clavicular, the sternocostal and the...
28 Αυγ 2023 · Compared to the pectoralis major, the pectoralis minor is much thinner and triangular in shape and resides below the major. It originates from the margins of the third to fifth ribs adjacent to the costochondral junction.
3 Νοε 2023 · The pectoralis minor lies underneath the pectoralis major muscle. It originates at the rib cartilages 3-5 and inserts to the medial border and the coracoid process of the scapula. The medial pectoral nerve supplies the muscle.
