Subcostal nerve - Misplaced Pages

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Subcostal nerve
Cutaneous distribution of thoracic nerves.
Details
From	T12
Identifiers
Latin	nervus subcostalis
TA98	A14.2.04.016
TA2	6485
FMA	65567
Anatomical terms of neuroanatomy[edit on Wikidata]

The subcostal nerve (anterior division of the twelfth thoracic nerve) is a mixed motor and sensory nerve contributing to the lumbar plexus. It runs along the lower border of the twelfth rib, often gives a communicating branch to the first lumbar nerve, and passes under the lateral lumbocostal arch.

It then runs in front of the quadratus lumborum, innervates the transversus, and passes forward between it and the abdominal internal oblique to be distributed in the same manner as the lower intercostal nerves.

It communicates with the iliohypogastric nerve and the ilioinguinal nerve of the lumbar plexus, and gives a branch to the pyramidalis muscle and the quadratus lumborum muscle. It also gives off a lateral cutaneous branch that supplies sensory innervation to the skin over the hip.

Additional images

Nervous system
The posterior divisions of the sacral nerves.
Plan of lumbar plexus.
Cutaneous nerves of the right lower extremity. Front and posterior views.

References

This article incorporates text in the public domain from page 948 of the 20th edition of Gray's Anatomy (1918)

^ Narchi, Patrick; Singelyn, François; Paqueron, Xavier (2008-01-01), Benzon, Honorio T.; Rathmell, James P.; Wu, Christopher L.; Turk, Dennis C. (eds.), "Chapter 49 - Truncal Blocks", Raj's Practical Management of Pain (Fourth Edition), Philadelphia: Mosby, pp. 905–915, ISBN 978-0-323-04184-3, retrieved 2020-11-23
Suresh, Santhanam; Polaner, David M.; Coté, Charles J. (2019-01-01), Coté, Charles J.; Lerman, Jerrold; Anderson, Brian J. (eds.), "42 - Regional Anesthesia", A Practice of Anesthesia for Infants and Children (Sixth Edition), Philadelphia: Elsevier, pp. 941–987.e9, doi:10.1016/b978-0-323-42974-0.00042-2, ISBN 978-0-323-42974-0, retrieved 2020-11-23
Cramer, Gregory D. (2014-01-01), Cramer, Gregory D.; Darby, Susan A. (eds.), "Chapter 7 - The Lumbar Region", Clinical Anatomy of the Spine, Spinal Cord, and Ans (Third Edition), Saint Louis: Mosby, pp. 246–311, doi:10.1016/b978-0-323-07954-9.00007-4, ISBN 978-0-323-07954-9, retrieved 2020-11-23

External links

posteriorabdomen at The Anatomy Lesson by Wesley Norman (Georgetown University) (posteriorabdmus&nerves)
glutealregion at The Anatomy Lesson by Wesley Norman (Georgetown University)
Atlas image: abdo_wall70 at the University of Michigan Health System - "Posterior Abdominal Wall, Dissection, Anterior View"
Anatomy figure: 40:07-00 at Human Anatomy Online, SUNY Downstate Medical Center - "Muscles and nerves of the posterior abdominal wall."
Anatomy image:8982 at the SUNY Downstate Medical Center

v t e Spinal nerves
Cervical	C1 C2 C3 C4 C5 C6 C7 C8 anterior Cervical plexus Brachial plexus posterior Posterior branches of cervical nerves Suboccipital – C1 Greater occipital – C2 Third occipital – C3
Thoracic	T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 anterior Intercostal Intercostobrachial – T2 Thoraco-abdominal nerves – T7–T11 Subcostal – T12 posterior Posterior branches of thoracic nerves
Lumbar	L1 L2 L3 L4 L5 anterior Lumbar plexus Lumbosacral trunk posterior Posterior branches of the lumbar nerves Superior cluneal L1–L3
Sacral	S1 S2 S3 S4 S5 anterior Sacral plexus posterior Posterior branches of sacral nerves Medial cluneal nerves
Coccygeal	anterior Coccygeal plexus posterior Posterior branch of coccygeal nerve

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