Muscles Of Anterolateral Ab Wall Flashcards Preview

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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

Rectus abdominis action

Flexes trunk and compresses abdominal viscera
Stabilizes and controls tilt of pelvis ( antilordosis)