Gross I: Erector Spinae Muscles

What are the three Erector Spinae muscles?

Iliocostalis mm. Longissimus mm. Spinalis mm. I Love Spagetti!!!

What is the origin and insertion of the Iliocostalis Lumborum?

O: Iliac crest - part of origin of erector spinea group I: Lower 6 rib angles

What is the origin and insertion of the Iliocostalis Thoracis?

O: Lower 6 Ribs I: Upper 6 ribs

What is the origin and insertion of the Spinalis Cervicis?

O: Lower nuchal ligament; C7 SP I: C2 SP

What is the origin and insertion of the Longissimus Thoracis?

O: Sacral ala, sacral & lower lumbar SP's (Group Origin) I: T3 - T12 TP's and adjacent Ribs

What is the origin and insertion of the Longissimus Capitis?

O: T1 - T5 TP's I: Posterior Mastoid Process

What is the origin and insertion of the Longissimus Cervicis?

O: T1 - T5 TP's I: C2 - C6 TP's

What is the origin and insertion of the Spinalis Thoracis?

O: T10 - L2 SP's I: T1 - T4 to T8 SP's

What is the origin and insertion of the Iliocostalis Cervicis?

O: Upper 6 ribs I: C4,5,6,TP's

What is the origin and insertion of the Spinalis Capitis?

O: With most medial portion of semispinalis capitic - Blends with it I: With most medial portion of semispinalis capitis into occiput Usually can't separate it out.