Abdominal Incisions

Question 1

Midline Incision

Answer 1

1. Incision through Linea Alba

* No nerves, muscles, or vessels transected

Question 2

Paramedian Incision

Answer 2

1. Anterior layer of Rectus Sheath Cut 1” lateral to midline
2. Tendinous intersections cut and Rectus muscle and anterior layer of sheath retracted
3. Posterior layer of Rectus Sheath Cut
   * No innervation to Rectus Abdominis Lost

Question 3

Transverse Incision

Answer 3

1. Incision through Rectus Sheath and Rectus Abdominis
2. Lateral Incision through Obliques and Transverse Abdominis
   * Only 1 Segmental Nerve Damaged because of the slope of the nerves

Question 4

McBurney’s Incision

Answer 4

1. Line from Umbilicus to Right Anterior Superior Iliac Spine
2. McBurney’s Point established 1” from Ant. Sup. Iliac Spine
3. Oblique Incision Following the Lines of Langer (Cleavage Lines)
4. Splitting of Ext. and Int. Obliques, Transverse Abdominis, Transversalis Fascia, and Parietal Peritoneum into Peritoneal Cavity

Question 5

Cleavage Lines

Answer 5

Lines of Langer