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The erector spinae is attached to the medial crest of the sacrum (a slightly raised feature of the sacrum closer towards the midline of the body as opposed to the "lateral" crest which is further away from the midline of the body), to the spinous processes of the lumbar, and the eleventh and twelfth
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This large muscular and tendinous mass varies in size and structure at different parts of the vertebral column. In the sacral region, it is narrow and pointed, and at its origin chiefly tendinous in structure. In the lumbar region, it is larger, and forms a thick fleshy mass. Further up, it is
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The muscular fibers form a large fleshy mass that splits, in the upper lumbar region, into three columns, viz., a lateral (iliocostalis), an intermediate (longissimus), and a medial (spinalis). Each of these consists of three parts, inferior to superior, as follows:
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originates from the sacrum, spinous processes of the lumbar vertebrae, and transverse process of the last thoracic vertebra and inserts in the transverse processes of the lumbar vertebrae, erector spinae aponeurosis, ribs, and costal processes of the thoracic
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may also be beneficial to lower back health. Care should be taken to avoid injury to the lower back when targeting spinal erectors directly. Exercises include, but are not limited to:
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Below are examples of exercises by which the erector spinae can be strengthened for therapeutic or athletic purposes. Additionally, exercises of the
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The longissimus muscle is the intermediate and the largest of the three columns. It has three parts with different origin and insertion:
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is an inconstant muscle fiber that runs from the cervical and upper thoracic and then inserts in the external occipital protuberance.
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at Human
Anatomy Online, SUNY Downstate Medical Center - "Intermediate layer of the extrinsic muscles of the back, deep muscles."
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originates from the transverse processes of T3-T1, runs through C7-C3, and inserts in the mastoid process of the temporal bone.
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subdivided into three columns. They gradually diminish in size as they ascend to be inserted into the vertebrae and ribs.
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Diagram of a transverse section of the posterior abdominal wall, to show the disposition of the lumbodorsal fascia
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originates from the transverse processes of T6-T1 and inserts in the transverse processes of C7-C2.
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which originates from the spinous process of L3-T10 and inserts in the spinous process of T8-T2.
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which runs from the first 6 ribs to the posterior tubercle of the transverse process of C6-C4.
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originates from the spinous process of T2-C6 and inserts in the spinous process of C4-C2.
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Knowledge articles incorporating text from the 20th edition of Gray's
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which run more or less the length of the spine on the left and the right, from the
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regions. The erector spinae is covered in the lumbar and thoracic regions by the
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The spinalis muscle is the smallest and most medial column. It has three parts:
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From lateral to medial, the erector spinae muscles can be remembered using the
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Transverse section, showing the relations of the capsule of the kidney
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has the lumbar part (where its insertion is in the 12th to 7th ribs).
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Some of its fibers are continuous with the fibers of origin of the
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where its insertion runs from the last 6 ribs to the first 6 ribs.
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The erector spinae is not just one muscle, but a group of
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may be too technical for most readers to understand
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357:Learn how and when to remove this message
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859:"How to pronounce spinae in English"
409:, and in the cervical region by the
391:spinous processes of the vertebrae
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861:. Cambridge University Press 2015
755:Right hip bone. Internal surface.
603:Upper thoracic vertebrae and ribs
591:Lower thoracic vertebrae and ribs
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104:Posterior branch of spinal nerve
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74:Spinous processes of T1 and T2
44:The erector spinae muscle group
431:posterior sacroiliac ligaments
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883:. LifeHugger. Archived from
60:Spinous processes of T9-T12
839:of the 20th edition of
803:Surface anatomy of the back
421:thoracic vertebrae and the
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464:erector spinae aponeurosis
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393:and extend throughout the
189:Anatomical terms of muscle
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914:Anatomy figure: 01:05-03
381:, or sacral region, and
146:musculus erector spinae
129:Rectus abdominis muscle
487:iliocostalis cervicis
481:iliocostalis thoracis
475:iliocostalis lumborum
423:supraspinous ligament
298:) to maintain stable
92:Lateral sacral artery
1321:Muscles of the torso
1269:clavipectoral fascia
1183:transversus thoracis
1130:thoracolumbar fascia
575:Intermediate column
516:longissimus cervicis
509:longissimus thoracis
407:thoracolumbar fascia
1192:serratus posterior
1156:Intercostal muscles
522:longissimus capitis
385:to the base of the
1208:thoracic diaphragm
1188:levatores costarum
1067:intertransversarii
1039:Transversospinales
925:2007-03-10 at the
881:"Medical mnemonic"
706:Pull-up (exercise)
617:Cervical vertebrae
80:cervical vertebrae
76:thoracic vertebrae
62:thoracic vertebrae
27:Human muscle group
1331:Medical mnemonics
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1241:serratus anterior
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742:Additional images
726:Bridge (exercise)
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1019:iliocostalis
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889:. Retrieved
885:the original
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863:. Retrieved
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701:Good-morning
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626:S. cervicis
612:S. thoracis
571:Iliocostalis
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448:Iliocostalis
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302:standing or
278:is a set of
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158:A04.3.02.002
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115:Extends the
1178:subcostalis
1024:longissimus
865:10 December
639:S. capitis
623:L. cervicis
620:I. cervicis
609:L. thoracis
606:I. thoracis
594:I. lumborum
578:Longissimus
500:Longissimus
494:Longissimus
468:iliac crest
135:Identifiers
1310:Categories
1236:subclavius
1052:multifidus
920:ithaca.edu
891:2009-12-15
821:References
721:Utkatasana
669:Spinalis.
636:L. capitis
512:vertebrae.
347:March 2016
124:Antagonist
1246:sternalis
1171:innermost
1085:trapezius
1057:rotatores
565:Insertion
310:Structure
70:Insertion
1201:superior
1196:inferior
1166:internal
1161:external
1095:rhomboid
1029:spinalis
1001:cervicis
988:splenius
923:Archived
837:page 397
691:Deadlift
673:Training
647:mnemonic
585:Spinalis
535:Spinalis
529:Spinalis
403:cervical
399:thoracic
78:and the
1300:Anatomy
996:capitis
965:of the
963:Muscles
736:Push-up
375:tendons
371:muscles
333:Please
304:sitting
300:posture
280:muscles
111:Actions
50:Details
1286:Portal
1256:Fascia
1144:Thorax
1122:Fascia
967:thorax
845:(1918)
711:Rowing
679:glutes
657:pine.
466:, and
460:sacrum
401:, and
395:lumbar
379:sacrum
87:Artery
56:Origin
1105:minor
1100:major
835:from
716:Squat
667:Spine
631:Skull
387:skull
274:) or
267:-tər
193:[
182:71302
141:Latin
99:Nerve
979:Back
971:back
969:and
867:2015
663:Love
653:ove
429:and
383:hips
373:and
294:and
284:back
271:-nee
263:irr-
205:The
170:2254
153:TA98
651:I L
337:to
269:SPY
177:FMA
165:TA2
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265:EK
248:aɪ
234:ər
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354:(
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254:i
251:n
245:p
242:s
239:ˈ
231:t
228:k
225:ɛ
222:r
219:ˈ
216:ɪ
213:/
209:(
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20:)
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