Principle Muscles of Anterolateral Abdominal Wall Flashcards Preview

Clinical Anatomy - Trunk/Thorax > Principle Muscles of Anterolateral Abdominal Wall > Flashcards

Flashcards in Principle Muscles of Anterolateral Abdominal Wall Deck (19)
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1
Q

External oblique - O

A

external surfaces of 5th-12th ribs

2
Q

External oblique - I

A

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

3
Q

External oblique - N

A

anterior rami of T7-T11

4
Q

External oblique - A

A

compresses and supports abdominal viscera

trunk flexion and rotation

5
Q

Internal oblique - O

A

thoracolumbar fascia, anterior 2/3 of iliac crest

6
Q

Internal oblique - I

A

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

7
Q

Internal oblique - N

A

anterior rami of T7-T11

8
Q

Internal oblique - A

A

compresses and supports abdominal viscera

trunk flexion and rotation

9
Q

Transverse abdominis - O

A

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

10
Q

Transverse abdominis - I

A

linea alba with aponeurosis of internal oblique, of pubic crest, and pubis via conjoint tendon

11
Q

Transverse abdominis - N

A

anterior rami of T7-T11

12
Q

Transverse abdominis - A

A

compresses and supports abdominal viscera

contracts when laughing/clearing throat

13
Q

Rectus abdominis - O

A

pubic symphysis and pubic crest

14
Q

Rectus abdominis - I

A

xiphoid process and 5th-7th costal cartilages

15
Q

Rectus abdominis - N

A

anterior rami of T7-T12 spinal nerves

16
Q

Rectus abdominis - A

A
trunk flexion (lumbar)
compresses abdominal viscera
stabilizes and controls tilt of pelvis (antilordosis)
17
Q

Linea alba

A

white line running vertically through rectus abdominis

18
Q

Fiber orientation - External obliques

A

diagonally superior to inferior, posterior to anterior \\\ (hands in front pockets)

19
Q

Fiber orientation - Internal obliques

A

diagonally inferior to superior, posterior to anterior /////