Encyclopedia entry
Sacral Plexus
Abstract
The origins of nerves of the sacral plexus are variable. The range of these variations, primarily from the work of Eisler, is tabulated below. Range of Variation of Sacral Plexus (table from Bardeen) Nerve High form of plexus Usual form of plexus Low form of plexus Composition Lumbosacral Trunk L4 L4 L4 N. to Quad. Femoris L4, L5 L4, L5, S1 L5, S1 N. to Obturator Internus L4, L5, S1, S2 L5, S1, S2 S1, S2, S3 Tibial L3, L4, L5, S1, S2 L4, L5, S1, S2, S3 L5, S1, S2, S3, S4 Superior Gluteal L4, L5, S1 L4, L5, S1, S2 L5, S1, S2 Inferior Gluteal L4, L5, S1 L5, S1, S2 L5, S1, S2 N.
The origins of nerves of the sacral plexus are variable. The range of these variations, primarily from the work of Eisler, is tabulated below.
Range of Variation of Sacral Plexus (table from Bardeen)
Nerve
High form of plexus
Usual form of plexus
Low form of plexus Composition
Lumbosacral Trunk
L4
L4
L4
N. to Quad. Femoris
L4, L5
L4, L5, S1
L5, S1
N. to Obturator Internus
L4, L5, S1, S2
L5, S1, S2
S1, S2, S3
Tibial
L3, L4, L5, S1, S2
L4, L5, S1, S2, S3
L5, S1, S2, S3, S4
Superior Gluteal
L4, L5, S1
L4, L5, S1, S2
L5, S1, S2
Inferior Gluteal
L4, L5, S1
L5, S1, S2
L5, S1, S2
N. to Piriformis
L5, S1, S2
S1, S2
S1, S2, S3
Common Peroneal
L3, L4, L5, S1
L4, L5, S1, S2
L5, S1, S2, S3
Posterior Femoral Cutaneous
L5, S1, S2
S1, S2, S3
S2, S3, S4
Pudendal
L5, S1, S2, S3
S1, S2, S3, S4
S1, S2, S3, S4 Extreme Range of Variation
Lumbosacral Trunk
L3 or L3, L4
L4
L4, L5, or L5
Common Peroneal
L3, L4, L5, S1, S2
L4, L5, S1, S2
L4, L5, S1, S2, S3, S4
Tibial
L3, L4, L5, S1, S2
L4, L5, S1, S2, S2
L4, L5, S1, S3, S4
Posterior Femoral Cutaneous
L5, S1, S2, S3
L5, S1, S2, S3, S4
L5, S1, S2, S3, S4
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Riferimenti dell’opera originale
Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.
- Bardeen, C.R. (1901-02) A statistical study of the abdominal and border nerves in man. Am. J. Anat. 1:203-228.
- Bardeen, C.R. (1906-07) Development and variation of the nerves and musculature of the inferior extremity and of the neighboring regions of the trunk in man. Am. J. Anat. 6:259-390.
- Bardeen, C.R. and A.W. Elting. (1901) A statistical study of the variations in the formation and position of the lumbo-sacral plexus in man. Anat. Anz. 19:124-128, 209-232.
- Eisler, P. (1892) Der Plexus lumbosacralis des Menschen. Halle.
- Paterson, A.M. (1887) Morphology of the sacral plexus in man. J. Anat. Physiol. 21:407-412.
- Urbanowicz, Z. (1891) Connections between the lumbar and the sacral plexus in man. Folia Morphol. (Warsaw) 40:271-279.
Anatomical classification
- Systems:
- Nervous system
Content provenance
Adaptation
Adaptation of «Sacral Plexus — 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/SacralPlexus.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.
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