iliocostalis thoracis

Question 1

iliocostalis thoracis shape

Answer 1

column

Question 2

iliocostalis thoracis origin

Answer 2

spinous processes & supraspinous ligament T11-L5, posterior sacral crests, sacrotuberous ligament and posterior part of the iliac crest

Question 3

iliocostalis thoracis insertion

Answer 3

lower 6 to upper 6 ribs

Question 4

iliocostalis thoracis direction of fibres

Answer 4

superiorly

Question 5

iliocostalis thoracis actions

Answer 5

extend the spine & head on neck, lateral flexion and rotation to one side

Question 6

iliocostalis thoracis function

Answer 6

maintain upright posture

Question 7

iliocostalis thoracis nerve supply

Answer 7

adjacent posterior rami