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The medial pectoral nerve usually arises from the medial cord of the brachial plexus; it can however occasionally arise directly from the anterior division of the inferior trunk of the brachial plexus. [1] [2] It is derived from the eighth cervical (C8) and first thoracic (T1) spinal nerve roots. [1] The origin is situated posterior to the ...
Its name comes from it being medial to the axillary artery as it passes through the axilla. The other cords of the brachial plexus are the posterior cord and lateral cord. The medial cord gives rise to the following nerves from proximal to distal: medial pectoral nerve (C8-T1) medial brachial cutaneous nerve (T1) medial antebrachial cutaneous ...
The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit, it supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.
The pectoralis major receives dual motor innervation by the medial pectoral nerve and the lateral pectoral nerve, also known as the lateral anterior thoracic nerve. The sternal head receives innervation from the C7, C8 and T1 nerve roots, via the lower trunk of the brachial plexus and the medial pectoral nerve. The clavicular head receives ...
Medial border and superior surface of the coracoid process of the scapula: Artery: Pectoral branch of the thoracoacromial trunk: Nerve: Medial pectoral nerve (C8) Actions: Stabilizes the scapula by drawing it inferiorly and anteriorly against the thoracic wall, raises ribs in inhalation: Identifiers; Latin: musculus pectoralis minor: TA98: A04 ...
Inferior lateral cutaneous nerve of arm - Near blue "axillary" area, but actually branches from radial nerve. Most modern sources distinguish the superior and inferior, but some still include a single "lateral brachial cutaneous nerve". ) Intercostobrachial nerve (brown) Medial cutaneous nerve of arm (yellow) - labeled as "medial brachial ...
The other cords of the brachial plexus are the posterior cord and medial cord. The lateral cord gives rise to the following nerves from proximal to distal: lateral pectoral nerve (C5-C7) musculocutaneous nerve (C5-C7) lateral head of median nerve (C5-C7) [other part of median nerve comes from medial cord]
Pectoral nerve may refer to: Lateral pectoral nerve; Medial pectoral nerve This page was last edited on 29 ...