Abdominal Wall Muscles, Nerve Roots, and Functions - Abdominal Wall Flashcards
Anterolateral Wall Muscles
External Obliques, Internal Obliques, Transverse Abdomonis
Anterior Wall Muscles
Rectus Abdominus
Posterior Wall Muscles
Psoas Major & Quadratus Lumborum
ALW - External Oblique NR
Intercostal: T2-T11 & Subcostal: T12
ALW - Internal Oblique NR
Intercostal: T2-T11 , Subcostal: T12 , Iliohypogastic: L1 , Genitifemoral: L1-L2
ALW - Transverse Abdominus NR
Intercostal: T2-T11 , Subcostal: T12 , Iliohypogastic & Ilioinguinal: L1
AW - Rectus Abdominus NR
Intercostal: T2-T11 & Subcostal: T12
PW - Psoas Major NR
Femoral: L2-L4
PW - Quadratus Lumborum NR
Subcostal: T12 & Anterior Rami: L1-L4
External Oblique Function
Trunk Flexion
Ipsilateral SB & Contralateral RT
Internal Oblique Function
Trunk Flexion
Ipsilateral SB & RT
Transverse Abdominus Function
Compression & Ipsilateral RT
CORE muscle - Stabilizes spine
Rectus Abdominus Function
Trunk Flexion
Psoas Major Function
Open Chain: FLX/ER/ADD
Closed Chain: Trunk Flexion & Ipsilateral SB
Quadratus Lumborum Function
Depress 12th Rib: respiration
Ipsilateral SB(closed) & Hip Lift(open)