Flashcards in Muscles Of Anterolateral Ab Wall Deck (16)
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External oblique origin
External surfaces of 5th -12th ribs
1
External oblique insertion
Linea alba, pubic tubercle, and anterior half of iliac crest
2
External oblique innervation
Thoraco-abdominal nerves (a.r. T7-t11) and subcostal nerve
3
External oblique action
Compress and support abdominal viscera; flex and rotate trunk
4
Internal oblique origin
Thoracolumbar fascia, anterior two thirds of iliac crest, and connective tissue deep to inguinal ligament
5
Internal oblique insertion
Infer borders of 10th-12th ribs, linea alba, and pubis via conjoint tendon
6
Internal oblique innervation
Thoraco-abdominal nerves(a.r. T7-t11) and first lumbar nerve
7
Internal oblique action
Compress and support abdominal viscera; flex and rotate trunk
8
Transversus abdominis origin
Internal surfaces of seventh -tenth costal cartilages, thoracolumbar fascia, iliac crest, and connective tissue deep to inguinal ligament
9
Transversus abdominis insertion
Linea alba with aponeurosis of internal oblique, pubic crest, and pectin pubis via conjoint tendon
10
Transversus abdominis innervation
Thoraco-abdominal nerves(a.r. T7-t11) and first lumbar nerve
11
Transversus abdominis action
Compresses and supports abdominal viscera
12
Rectus abdominis origin
Pubic synthysis and pubic crest
13
Rectus abdominis insertion
Xiphoid process and 5th-7th costal cartilages
14
Rectus abdominis innervation
Thoraco-abdominal nerves(anterior rami of inferior six thoracic nerves)
15
