muscles of the anterolateral abdominal wall Flashcards
external oblique insertion
linea alba
pubic tubercle
anterior half of iliac crest
external oblique origin
external surfaces of 5th -12th ribs
external oblique innervation
thoracoabdominal nerves (anterior rami of T7-T11) and subcostal nerve
external oblique fibers path
infero-medially
supero-laterally
internal oblique origin
thoracolumbar fascia
anterior 2/3 of iliac crest
connective tissue deep to inguinal ligament
internal oblique insertion
inferior borders of 10th- 12th ribs
linea alba
pubis
internal oblique innervation
thoraco-abdominal nerves ( anterior rami T7-T11) subcostal nerve and first lumbar nerve
action of internal and external oblique
compress and support abdominal viscera
flex and rotate trunk
transversus abdominis origin
internal surfaces of 7th-12th costal cartilages
thoracolumbar fascia
iliac crest
connective tissue deep to inguinal ligament
transversus abdominis insertion
linea alba with aponeurosis of internal oblique
pubic crest
pubis
transversus abdominis innervation
thoraco-abdominal nerves ( anterior rami T7-T11) subcostal nerve and first lumbar nerve
transversus abdominis action
compresses and supports abdominal viscera
rectus abdominis origin
pubic symphasis
pubic crest
rectus abdominis insertion
xiphoid process and 5th-7th costal cartilages
rectus abdominis innervation
thoraco-abdominal nerves ( anterior rami T7-T11)