Encyclopedia entry
Lateral and Medial Pectoral Nerves
Abstract
The medial pectoral (from the medial cord of the brachial plexus) may supply twigs to the clavicular head of the deltoid muscle and the acromioclavicular articulation. The lateral pectoral (from the lateral cord of the brachial plexus) may not receive fibers from the first thoracic nerve. Cutaneous branches from the lateral pectoral nerve have been described supplying the skin of the mammary region and axilla. Fibers from the medial pectoral nerve that supply m. pectoralis major may wind around the lower border of pectoralis minor instead of piercing it.
The medial pectoral (from the medial cord of the brachial plexus) may supply twigs to the clavicular head of the deltoid muscle and the acromioclavicular articulation. The lateral pectoral (from the lateral cord of the brachial plexus) may not receive fibers from the first thoracic nerve.
Cutaneous branches from the lateral pectoral nerve have been described supplying the skin of the mammary region and axilla.
Fibers from the medial pectoral nerve that supply m. pectoralis major may wind around the lower border of pectoralis minor instead of piercing it.
The lateral and medial pectoral nerves together may form an ansa.
Either nerve may form a loop around a neighboring vessel.
Riferimenti dell’opera originale
Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.
- Birmingham, A. (1889) Homology and innervation of the achselbogen and pectoralis quartus, and the nature of the lateral cutaneous nerve of the thorax. J. Anat. Physiol. 23:206-223.
- Henle, J. (1868) Handbuch der Systematischen Anatomy des Menschen. von Friedrich Vieweg und Sohn., Braunschweig.
- Latarjet, A. (1948) Testut's Traité d'Anatomie Humaine, 9th ed., G. Doin & Cie., Paris.
- Schaefer, E.A., Symington, J. and T.H. Bryce, Eds. (1915) Quain's Anatomy, 11th ed., Longmans, Green, and Co., London.
Anatomical classification
- Systems:
- Nervous system
Content provenance
Adaptation
Adaptation of «Lateral and Medial Pectoral Nerves — Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System» by Ronald A. Bergman, Adel K. Afifi, Ryosuke Miyauchi. Source: https://www.anatomyatlases.org/AnatomicVariants/NervousSystem/Text/LateralMedialPectoral.shtml Original work distributed under the CC BY-NC-SA 4.0 licence (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.it). Adaptation by Redazione AIVA. Changes from the original: Testo originale inglese riprodotto integralmente e riorganizzato nel formato scheda del portale (sintesi, testo, riferimenti), senza modificarne le affermazioni. La traduzione italiana non è ancora stata eseguita, e la pagina lo dichiara. Le figure non sono state copiate: sono collegate alla pagina d’origine. This publication is not approved or endorsed by the authors of the original work.
Licence
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