| Thoracolumbar fascia | |
|---|---|
 Diagram of a transverse section of the posterior abdominal wall, to show the disposition of the lumbodorsal fascia. | |
 Superficial muscles of the back. The thoracolumbar fascia is the gray area at bottom center. | |
| Details | |
| Identifiers | |
| Latin | fascia thoracolumbalis, fascia lumbodorsalis |
| TA98 | A04.3.02.501 |
| TA2 | 2242 |
| FMA | 25072 |
| Anatomical terminology | |
The thoracolumbar fascia (lumbodorsal fascia or thoracodorsal fascia) is a complex,[1]: 1137 multilayer arrangement of fascial and aponeurotic layers forming a separation between the paraspinal muscles on one side, and the muscles of the posterior abdominal wall (quadratus lumborum, and psoas major[1]: 1137 ) on the other.[2][1]: 1137 It spans the length of the back, extending between the neck superiorly and the sacrum inferiorly.[3] It entails the fasciae and aponeuroses of the latissimus dorsi muscle, serratus posterior inferior muscle, abdominal internal oblique muscle, and transverse abdominal muscle.[4]
In the lumbar region, it is known as lumbar fascia and here consists of 3 layers (posterior, middle, and anterior) enclosing two muscular compartments. In the thoracic region, it consists of a single layer (an upward extension of the posterior layer of the lumbar fascia).[3] The thoracolumbar fascia is most prominent at its lower end[1]: 814–815 where its various layers fuse into a thick composite.[2]
- ^ a b c d Standring S (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42nd ed.). New York. ISBN 978-0-7020-7707-4. OCLC 1201341621.
{{cite book}}: CS1 maint: location missing publisher (link) - ^ a b Willard FH, Vleeming A, Schuenke MD, Danneels L, Schleip R (December 2012). "The thoracolumbar fascia: anatomy, function and clinical considerations". Journal of Anatomy. 221 (6): 507–536. doi:10.1111/j.1469-7580.2012.01511.x. PMC 3512278. PMID 22630613.
- ^ a b Sinnatamby C (2011). Last's Anatomy (12th ed.). Elsevier Australia. p. 274. ISBN 978-0-7295-3752-0.
- ^ "thoracolumbar fascia". TheFreeDictionary.com. Retrieved 2023-05-14.