Abdominal Wall

Question 1

Name the layers of the anterior wall of the rectus sheath

Answer 1

• The aponeurosis of the external abdominal oblique m.
• Anterior layer of the aponeurosis of the internal abdominal oblique m.

Question 2

Name the layers of the posterior wall of the rectus sheath.

Answer 2

• Posterior layer of The aponeuroses of the internal abdominal oblique m.
• The transversus abdominis m.

Question 3

Name the inferior most border of the rectus sheath.

Answer 3

Arcuate Line/Douglas line

Question 4

Which arteries anastomose within the rectus sheath?

Answer 4

• Superior and inferior epigastric aa.

The superior epigastric artery is a branch of the internal thoracic artery, while the inferior epigastric artery is a branch of the external iliac artery.

These arteries run along the anterior abdominal wall and travel within the rectus sheath, which is the fibrous sheath formed by the aponeuroses of the abdominal muscles.

Question 5

Which fetal anatomical item does the median umbilical ligament derive from?

Answer 5

Urachus

Question 6

Which fetal anatomical item does the** medial** umbilical ligament derive from?

Answer 6

Umbilical artery