MUSCLES OF THE LUMBAR SPINE

Question 1

attachments of quadratus lumborum

Answer 1

iliolumbar ligament and iliac crest

to the medial 1/2 of 12th rib and transverse processes of L1-L4

Question 2

Function of quadratus lumborum

Answer 2

lateral flexion to the same side

bilateral trunk extension

Question 3

Origin of the Erector Spine muscles

Answer 3

spinous processes
supraspinous ligaments of T11-L5
posterior sacral crests
sacrotuberous ligament
posterior iliac crest

Question 4

Insertion of the Erector spinae: Iliocostalis Lumborum

Answer 4

inferior borders of lower 6 ribs

Question 5

Insertion of the Erector spinae: Iliocostalis Thoracis

Answer 5

upper 6 ribs and TPs of C7

Question 6

Insertion of the Erector spinae: Iliocostalis Cervicis

Answer 6

TPs of C4-C7

Question 7

Insertion of the Erector spinae: Longissimus Thoracis

Answer 7

TPs of all thoracic vertebrae and lower 10 ribs

Question 8

Insertion of the Erector spinae: Longissimus Cervicis

Answer 8

TPs of C2-6

Question 9

Insertion of the Erector spinae: Longissimus Capitis

Answer 9

articular processes of C4-C7 and mastoid process

Question 10

Attachments of the Semispinalis Thoracis

Answer 10

TPs toT6-T10

to SPs of C6 - T2

Question 11

Attachments of Semispinalis Cervicis

Answer 11

TPs of T1-T6

to SPs of C2-C6

Question 12

Attachments of Semispinalis Capitis

Answer 12

TPs of T1-T6 to articular processes of C4-C7