Muscles of Thorax, Abdominal Wall, and Pelvis

external intercostals
(vertebral column to costachondral junction)

internal intercostals (sternum to angle of ribs)

thoracic diaphragm (floor of thoracic cavity)

rectus abdominis (pubic crest to xyphoid process) [covered w/ sheath]

External oblique (outer surfaces of lower 8 ribs to linea alba)

Internal oblique (iliac creasr to cartilage of lower 3 ribs, linea alba and pubic bone)

Tansverse abdominis (horizontal from 6 lower ribs, lumbar vertebrae, iliac crest to linea alba and pubic bone)

Pelvic diaphragm (muscles closing pelvic outlet)

Urogenital diaphragm

superficial space