Miscellaneous for Spinal

Question 1

LATISSIMUS DORSI

Answer 1

O: SP’s of T7-L5, posterior iliac crest, posterior sacrum & ribs 9-12 (all via thoracolumbar fascia)
I: bicipital groove of the humerus
N: thoracodorsal nerve

Question 2

LONGISSIMUS THORACIS

Answer 2

O: medial iliac crest & posterior sacrum; TVP’s and SP’s of L1-L5
I: TVP’s of T1-T12 & ribs 4-12
N: dorsal rami of spinal nerves

Question 3

ILIOCOSTALIS LUMBORUM

Answer 3

O: medial iliac crest, medial & lateral sacral crests
I: angle of ribs 7-12
N: dorsal rami of spinal nerves

Question 4

TRANSVERSUS ABDOMINIS

Answer 4

O: inguinal ligament, iliac crest, thoracolumbar fascia & costal cartilage of ribs 7-12
I: abdominal aponeurosis

Question 5

QL

Answer 5

O: TVP’s of L1-L4 & medial 1/2 of inferior rib 12
I: posteromedial iliac crest & iliolumbar ligament

Question 6

RECTUS ABDOMINIS

Answer 6

O: pubic crest, symphysis pubis
I: ribs 5-7 & their cartilage

Question 7

EAO

Answer 7

O: anterior iliac crest, abdominal aponeurosis, pubic crest/tubercle/bone
I: inferior border of ribs 4-12

Question 8

IAO

Answer 8

O: anterior iliac crest, inguinal ligament, thoracolumbar fascia
I: ribs 10-12 (“lower 3 ribs”) abdominal aponeurosis

Question 9

ILIACUS

Answer 9

O: internal ilium, AIIS & sacral ala
I: lesser trochanter
N: femoral

Question 10

PSOAS MAJOR

Answer 10

O: anterolateral bodies & TVPs of T12-L5 & IVD between
I: lesser trochanter of femur
N: lumbar plexus L1-L3