Test 3 principal muscles of anterolateral abdominal wall Flashcards Preview

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Flashcards in Test 3 principal muscles of anterolateral abdominal wall Deck (16):
0

external oblique origin

exterrnal surfaces of 5th -12th ribs

1

external oblique insertion

-linea alba,
-pubic tubercle
-anterior half of iliac crest

2

external oblique innervation

thoraco-abdominal nerves(anterior rami ofT7-T11) and subcostal nerve

3

external oblique action

-compress and support abdominal viscera
- flex and rotate trunk

4

internal oblique origin

-thorco lumbar fascia
-anterior two thirds of iliac crest
-connective tissue deep to inguinal ligament

5

internal oblique insertion

-inferior borders of 10th-12th ribs
-linea alba
-pubis via conjoint tendon

6

internal oblique innervation

thoraco-abdominal nerves (anterior rami of T7-T11) and first lumbar nerve

7

internal oblique action

-compress and support abdominal viscera
- flex and rotate trunk

8

transversus abdominis origin

-internal surface of 7th 12th costal cartilages
-thoracolumbar fascia
-iliac crest
-connective tissue deep to inguinal ligament

9

transversus abdominis insertion

-linea alba with aponerosis of internal oblique
-pubic crest
-pectin pubis via conjoint tendon

10

transversus abdominis innervation

thoraco-abdominal nerves (anterior rami of T7-T11) and first lumbar nerve

11

transversus abdominis action

compressesand supports abdominal viscera

12

rectus abdominis origin

pubic symphisis and pubic crest

13

rectus abdominis insertion

xiphoid process and 5th- 7thcost cartilages

14

rectus abdominis innervation

horaco-abdominal nerves(anterior rami of inferior 6 thorcic nerves)

15

rectus abdominis action

-flexes trunk (lumbar vertebrae )
-compresses abdominal viscera
-stabalizes and controlls tilt of pelvis (antilordosis )