Encyclopedia entry
Lesser Occipital Nerve
Abstract
The lesser occipital nerve may be very small and distributed only to the skin of the neck. In such cases, the greater occipital nerve supplies the areas usually supplied by the lesser occipital. In some cases instead of its usual dorsal and upward course beneath the deep fascia along the posterior border of the sternocleidomastoid muscle, the lesser occipital nerve passes directly backward, piercing the trapezius muscle near its upper border before reaching the scalp. The auricular branch of the lesser occipital nerve may be derived from the greater occipital.
The lesser occipital nerve may be very small and distributed only to the skin of the neck. In such cases, the greater occipital nerve supplies the areas usually supplied by the lesser occipital. In some cases instead of its usual dorsal and upward course beneath the deep fascia along the posterior border of the sternocleidomastoid muscle, the lesser occipital nerve passes directly backward, piercing the trapezius muscle near its upper border before reaching the scalp.
The auricular branch of the lesser occipital nerve may be derived from the greater occipital. It usually arises from the second and third cervical nerves or from the second and third cervical nerves or from the loop between them.
Riferimenti dell’opera originale
Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.
- Cordier, -., Coulouma, -., Devos, -. et -. Delcroix. (1936) Contribution a l'étude de la constitution du plexus cervical chez l'homme et quelques primates. Assoc. Anatomistes Comptes Rendus 31:114-123.
- Henle, J. (1868) Handbuch der Systematischen Anatomie des Menschen. von Friedrich Vieweg und Sohn, Braunschweig.
- Jackson, C.M., Ed. (1933) Morris' Human Anatomy, 9th ed., P. Blakiston's Son & Co., Inc., Philadelphia
- Latarjet, A. (1948) Testut's Traité d'Anatomie Humaine, 9th ed., G. Doin & Co., 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 «Lesser Occipital Nerve — 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/LesserOccipitalNerve.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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