Anterior Lateral Abdominal Wall

Question 1

External oblique: O

Answer 1

External surface of Ribs 5-12 (lower 8 ribs)

Question 2

External oblique: I

Answer 2

• Linea Alba

- Pubic Tubercle and anterior ½ of Iliac Crest

Question 3

External oblique: N

Answer 3

Thoracoabdominal Nerves

Question 4

External oblique: A

Answer 4

Flexes Trunk (bilaterally)
- Rotates Trunk to opposite side (contralateral)

Question 5

Internal Oblique: O

Answer 5

• Thoraco-Lumbar Fascia

- Anterior 2/3 of Iliac Crest and lateral 1/3 of Inguinal Ligament

Question 6

Internal Oblique: I

Answer 6

• Inferior border of Rib 10-12

- Linea Alba and Pectin Pubis via Conjoint Tendon

Question 7

Internal Oblique: N

Answer 7

Thoracoabdominal Nerves

Question 8

Internal Oblique: A

Answer 8

• Flexes Trunk (bilaterally)

- Rotates Trunk (ipsilaterally)

Question 9

Transversus Abdominis: O

Answer 9

Post. Attachment:

• Thoraco-Lumbar Fascia
• Inferior surface of Costal Cartilages 7-12
• Iliac Crest and lateral 1/3 of Inguinal ligament

Question 10

Transversus Abdominis: I

Answer 10

Ant. Attachment:

• Linea Alba
• Aponeurosis of Internal Oblique
• Pubic Crest and Pectin Pubis via Conjoint Tendon

Question 11

Transversus Abdominis: N

Answer 11

Thoracoabdominal Nerves

Question 12

Transversus Abdominis: A

Answer 12

Compresses and supports abdominal viscera

Question 13

Rectus Abdominis: O

Answer 13

Pubic Symphysis and Pubic Crest

Question 14

Rectus Abdominis: I

Answer 14

Xiphoid and Costal Cartilages 5-7

Question 15

Rectus Abdominis: N

Answer 15

Thoracoabdominal Nerves

Question 16

Rectus Abdominis: A

Answer 16

Flexes Trunk (Lumbar Vertebrae)
- Compresses abdominal viscera