Anterolateral Abdominal Wall

Question 1

External Oblique

Answer 1

Attachments:

Superior/Proximal: External Ribs 5th-12th
Inferior/Distal: Linea Alba & Pubic Tubercle

Action:

Compresses and supports abdominal viscera, flexes and rotates trunk

Question 2

Internal Oblique

Answer 2

Attachments:

Superior/Proximal: Inferior Borders 10th-12th Ribs & Linea Alba
Inferior/Distal: Thorcolumbar Fascia & Anterior Iliac Crest

Action:

Compresses and supports abdominal viscera, flexes and rotates trunk

Question 3

Transversus Abdominus

Answer 3

Attachments:

Superior/Proximal: Thoracolumbar Fascia & Iliac Crest & 7th-12th Costal Cartilage
Inferior/Distal: Linea Alba & Pubic Crest

Action:

Compresses and supports abdominal viscera

Question 4

Rectus Abdominus

Answer 4

Attachments:

Superior/Proximal: Xiphoid Process & 5th-7th Costal Cartilage
Inferior/Distal: Pubic Symphysis & Pubic Crest

Action:

Flexes trunk & Compresses Abdominal Viscera & Stabilises Pelvis