- Thoracic nerves
Infobox Nerve
Name = PAGENAME
Latin = nervi thoracici
GraySubject = 209
GrayPage = 923
Caption = Cutaneous distribution of thoracic nerves.
Caption2 =
System =
Precursor =
MeshName = Thoracic+nerves
MeshNumber = A08.800.800.720.800
DorlandsPre = n_05
DorlandsSuf = 12566904
The thoracic nerves are thespinal nerves emerging from thethoracic vertebrae .Anterior divisions
* The
intercostal nerves come from thoracic nerves T1-T11, and run between theribs ("costae"). At T2 and T3, it further branches into theintercostobrachial nerve .* The
subcostal nerve comes from nerve T12, and runs below thetwelfth rib .Posterior divisions
The medial branches (ramus medialis; internal branch) of the posterior divisions of the upper six thoracic nerves run between the
Semispinalis dorsi andMultifidus , which they supply; they then pierce theRhomboidei andTrapezius , and reach the skin by the sides of thespinous processes .The medial branches of the lower six are distributed chiefly to the Multifidus and Longissimus dorsi, occasionally they give off filaments to the skin near the middle line.
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