Posterolateral Abdominal Wall Anatomy
Serratus anterior muscle, Infraspinatus
fascia Rhomboid major muscle, Triangle of auscultation, Lateral cutaneous
branch of posterior ramus of T7 spinal nerve Medial cutaneous branch of
posterior ramus of T7 spinal nerve, Trapezius
muscle Latissimus dorsi muscle, External abdominal oblique muscle, Thoracolumbar
fascia (posterior layer), Lateral cutaneous branch of subcostal nerve (anterior
ramus of T12), Lumbar triangle (of Petit) Iliac crest,
Lateral cutaneous branch of iliohypogastric nerve (L1), Superior cluneal nerves (lateral cutaneous branches of posterior ramus of L1–3 spinal nerves), Gluteal aponeurosis over gluteus medius muscle, Gluteus maximus muscle, Latissimus dorsi muscle, Latissimus dorsi muscle (cut and turned back) Serratus posterior inferior muscle, Digitations of costal origin of latissimus dorsi muscle, Digitations of costal origin of external abdominal oblique muscle External abdominal oblique muscle (cut and turned back), Aponeurosis of transversus abdominis muscle Internal abdominal oblique muscle, Lateral cutaneous branch of subcostal nerve (anterior ramus of T12) Lateral cutaneous branch of iliohypogastric nerve (L1) Iliac crest, Superior cluneal nerves (lateral cutaneous branches of posterior ramus of L1–L3 spinal nerves), Gluteus maximus muscle.
Lateral cutaneous branch of iliohypogastric nerve (L1), Superior cluneal nerves (lateral cutaneous branches of posterior ramus of L1–3 spinal nerves), Gluteal aponeurosis over gluteus medius muscle, Gluteus maximus muscle, Latissimus dorsi muscle, Latissimus dorsi muscle (cut and turned back) Serratus posterior inferior muscle, Digitations of costal origin of latissimus dorsi muscle, Digitations of costal origin of external abdominal oblique muscle External abdominal oblique muscle (cut and turned back), Aponeurosis of transversus abdominis muscle Internal abdominal oblique muscle, Lateral cutaneous branch of subcostal nerve (anterior ramus of T12) Lateral cutaneous branch of iliohypogastric nerve (L1) Iliac crest, Superior cluneal nerves (lateral cutaneous branches of posterior ramus of L1–L3 spinal nerves), Gluteus maximus muscle.
