ANAT 315 Lecture Notes - Lecture 8: Pectoralis Minor Muscle, Latissimus Dorsi Muscle, Axillary Lymph Nodes
20 Oct 2017
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Anat 315: anatomy of the limbs an d back. The axilla: a four-sided pyramidal-shaped region between the proximal arm and thoracic wall. Communication of major neurovascular structures supplying the upper limb are contained in this space. Inferior (base): axillary skin and fascia at the lower borders of the pectoralis major and the teres major/latissimus dorsi: anterior: pectoral muscles, posterior: subscapularis muscle, teres major and latissimus dorsi (inferior part, medial: serratus anterior. Contents of the axilla: axillary sheath and its contents, axillary artery, axillary vein, brachial plexus (terminal branches, axillary lymph nodes, tendons of the biceps brachii and coracobrachialis muscles (will discuss these muscles in the arm & elbow lecture) Continuation of the subclavian a: provides blood supply to the head, neck, thoracic wall and muscles of the shoulder, branches of subclavian a. include: (mneumonic vit c & sometimes d, vertebral a. (will supply brain) Internal thoracic (mammary) a. (anterior thoracic wall: thyrocervical trunk:
