Mammary Gland Anatomy PDF

· I  Although the mammary gland is Q in superficial fascia overlying the thoracic wall, its superolateral region extends along the inferior margin of the pectoralis major muscle toward the axilla. In some cases, this may pass around the margin of the muscle to pen...

· I  Although the mammary gland is Q in superficial fascia overlying the thoracic wall, its superolateral region extends along the inferior margin of the pectoralis major muscle toward the axilla. In some cases, this may pass around the margin of the muscle to penetrate deep fascia and enter the axilla. This axillary process rarely reaches as high as the apex of the axilla. 1. Location of the Mammary Gland: The main body of the mammary gland is located in the superficial fascia over the chest wall. 2. Axillary Process: This refers to the part of the breast that extends along the lower edge of the pectoralis major muscle toward the armpit. In some cases, this extension can reach up around the edge of the muscle and move into the deeper layers of the fascia, extending toward the axilla. 3. Significance: The axillary process is important because it contains breast tissue, which can be relevant in various medical conditions, such as breast cancer. Its proximity to the lymph nodes in the armpit also has implications for the spread of breast cancer and other pathologies. C- If this mass was fixed to the underlying tissue, which muscle would be involved? Pectoralis major muscle The lymph from the medial quadrants of the breast drain mainly into the internal thoracic node The lymphatic drainage of the upper lateral quadrant of the breast is Anterior axillary LN inf I Swollen Pectoral Axillary Lymph nodes in breast Cancer Brachial Plexus Brachial Plexus  grey matter Posterior (sensoryFibers) anterior (motor fibers) whileer (mix of sensorymotor Fibers) all flexuses in our body are formed by ventral vani of spinal nerve with a stract a nerves & in elexus stinanerves ventral of of rumi ventral vami anterior division of upper and middle trunk anterior division of lower Fraud all 3 Posterior divisions  axilich cerrico-axillary Posterior triangle of the neck ↑ canal - & Cords Divisionsanterior trunk Koofs ⑧posterior - Lateral cord anterior division of the UpperC5 16 , e To and middle trunk (7 Middle- - unferior We didCodtenbrunk Tower , TI Posterior Cord - o servin, or  - lateral M shape medial Posterior #  lateral M shape medial Posterior * * &  lateral M shape medial Posterior 5, 6 6, 7, 8 5, 6-feres major Radial nerve passes posterior to axillary artery. ~ - ~ trun) e posterior triangle of the neck - divisions- > Cerrico-axillary canal latissimus dorsi > - Roots (5 , 6 , 7) - -medial Park CO, Tl + in ulnar (7 medial sectoral nerve the nerve likely affected is the medial cutaneous nerve of the arm. Origin and Pathway: The medial cutaneous nerve of the arm originates from the medial cord of the brachial plexus. It derives its fibers primarily from the C8 and T1 nerve roots. This nerve runs down the inner side of the arm, supplying sensation to the skin of the medial aspect of the right arm. 97'9037/)0)8%0
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