Region: Pectoral Region

Pectoralis Minor

Pectoralis Minor The structure indicated is the pectoralis minor muscle. The pectoralis minor muscle lies deep to the much larger, powerful pectoralis major muscle. The pectoralis minor muscle is covered anteriorly by the clavipectoral fascia. This muscle divides the axillary artery into three parts. Part 1 lies proximally to the pectoralis minor, part 2 is the part of the axillary artery covered by the pectoralis minor, and the third part lies distal to the pectoralis minor. The pectoralis minor inserts onto the coracoid process of the scapula. There are three muscles which attach to the coracoid process: Short head of …

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pectoralis minor

Suspensory Ligament of Breast (Cooper’s Ligaments)

Suspensory Ligament of Breast (Cooper’s Ligaments) The structure indicated is the suspensory ligament of the breast, also known as Cooper’s ligaments. These ligaments are formed from the connective tissue stroma which surround the ducts and lobules of the mammary gland – in certain areas the connective tissue condenses forming ligaments which support the breast, extending from the dermis of the overlying skin to the deep fascia. These suspensory ligaments support the breast on the chest wall. The suspensory ligaments of Cooper give rise to the dimpling appearance (peau d’orange) that is seen following development of inflammatory carcinoma, as the lymphatic …

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Suspensory Ligament of Breast