WebDec 27, 2024 · The medial pectoral nerve gives rise to muscular branches that supply the pectoralis major muscle. This muscle is involved in adduction, internal rotation, flexion, and extension of the arm at the shoulder joint, as well as drawing of the scapula anteroinferior at the scapulothoracic joint. WebSpinal accessory nerve. Helps move/stabilize the scapula to allow normal shoulder motion especially shoulder abduction beyond 90º. Serratus anterior. Long thoracic nerve. Abduction (protraction) of the scapula. Responsible for assisting with shoulder flexion especially beyond 90º of flexion. Rhomboid Major and Minor.
Innervation of the pectoralis major muscle: anatomical study
WebJul 30, 2024 · Innervation of the Pectoralis Major Muscles The medial pectoral nerve and lateral pectoral nerve supply motor innervation to each of the pectoralis major muscles. These nerves are both branches of the brachial plexus, a network of nerves that extends from the spinal cord and supplies the upper limbs. Action of the Pectoralis Major Muscles WebThe pectoralis major muscle is innervated by two nerves: the lateral pectoral nerve and the medial pectoral nerve. The lateral pectoral nerve receives fibers from the anterior rami of C5, C6, and C7; and the medial pectoral nerve receives fibers from the anterior rami of C8 and T1, and they are also connected by a communicating branch. paron mario by paron mario racconti
Innervation of the pectoralis major muscle: anatomical study
WebDale A. Baur, ... Juan C. Rodriguez, in Current Therapy In Oral and Maxillofacial Surgery, 2012 Innervation of the Pectoralis Major. Both the lateral and medial pectoral nerves, nerves that are branches of the brachial plexus, provide motor innervation to the PM muscle.The lateral pectoral nerve arises from the lateral cord of the brachial plexus and is composed of … http://nervesurgery.wustl.edu/ev/brachialplexus/medialpectoralnerve/Pages/pectoralisminor.aspx オムロン 血圧計 hem 6000 取扱説明書