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lateral branches of posterior rami of cervical/thoracic/lumbar/sacral/coccygeal spinal nerves


Definition: terminal branch (with the medial branch) of the posterior ramus of spinal nerves. In the thoracic region, the lateral branches of the upper thoracic spinal nerves are only muscular and do not reach the skin; the lateral branches of the lower thoracic spinal nerves are musculocutaneous, supplying and continuing past the muscles of the back to reach the overlying skin.

Synonym(s): rami laterales ramorum posteriorum nervorum cervicalium/thoracalium/lumbaliumTA

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.