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Vertebral column mus

Muscles of the vertebral column

QuestionAnswer
Iliocostalis lumborum ORIGIN - pelvic surface wing of ilium, iliac crest, transverse process of lumbar vert INSERTION - ribs 10-13 ACTION - fixation of vertebral column, lateral movement
Iliocostalis thoracic ORIGIN - ribs 10-13, cranial borders vertebral end of ribs INSERTION - costal angle of ribs ACTION - fixation of vertebral column, lateral movement
Longissimus POSITION - lies medially to iliocastalis PARTS - lumborum, thoracic, cervicis, capitus
Longissimus lumborum ORIGIN - iliac crest INSERTION - accessory processes of L1-6 ACTION - extension of vert column, stabilise rotation
Longissimus thoracic ORIGIN - iliac crest costal tubercles, ribs 1-5 INSERTION - accessory processes T13-6
Longissimus cervicis ORIGIN - continues from thoracic portion INSERTION - transverse process cervical vert 3-6 ACTION - extend neck, unilateral: turn neck obliquely and turn to one side
Longissimus capitus ORIGIN - transverse processes T1-3, caudal articular process cervical vert 3-7 INSERTION - mastoid process ACTION - extension of atlanto-occipital joint, unilateral rotates anlantoaxial joint POSITION - medial to longissimus cervicis and splenius
Transversospinalis multifidus ORIGIN - articular processes of sacrum, 1st caudal vert, 7-12 lumbar vert INSERTION - laterally on spinous processes L6 to T9 ACTION - fixes vert column FORM - numerous individual positions POSITION - medial to longissimus & iliocostalis
Transversospinalis spinalis et semispinalis POSITION - lies lateral to spinous processes, dorsomedial to longissimus
Longus capitus ORIGIN - transverse processes C6-2 INSERTION - tubercle basiooccipital bone ACTION - flex atlanto-occipital joint, draws neck down
Longus colli ORIGIN - ventral border transverse processes C6-3 INSERTION - ventral spine of the next preceding C vert ACTION - draw the neck down
Psoas minor ORIGIN - fascia of quadratus lumborum INSERTION - iliopubic eminance ACTION - flex lumbosacral joint
Iliopsoas - psoas major ORIGIN - transverse processes L2-3, ventral and lateral surfaces L4-7 INSERTION -minor trochanter femur ACTION - draw pelvic limb cranially POSITION - on ventral surface of spine
Iliopsoas - iliacus ORIGIN - ventral border wing of ilium INSERTION - minor trochanter femur ACTION - draw pelvic limb cranially
Quadratus lumborum ORIGIN - bodies of T10-13, transverse processes lumbar vert INSERTION - medial surgface wing of ilium ACTION -flexion and fixation of lumbar vert POSITION - directly ventral to bodies of thoracic and lumbar vert
Created by: tazza261
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