Ant. Abdominal Wall: Rectus Sheath

Question 1

Teh rectus sheath is formed by the aponeuroses of which anterior abdmominal wall muscles?

Answer 1

1) External Oblique
2) Internal Oblique
3) Transversus Abdoninis

Question 2

The rectus sheath encloses what?

Answer 2

1) Recuts Abdominis muscle
2) Pyramidalis Muscle (when present)
3) Superior Epigastric Artery and Vein
4) Inferior Epigastric Artery and Vein
5) Anterior Primary Rami of the Lower 6 Throacic Nerves

Question 3

At what point does the rectus sheath separate from anterior and posterior layers?

Answer 3

Position in relation to the arcuate line of the abdmonial wall

Question 4

What is the crescent shaped line in the posterior layer of the rectus sheath located between the umbilicus and the pubic crest?

Answer 4

Acruate Line

Question 5

When above the arcuate line, the internal oblique aponeurosis will split to enclose what muscle?

Answer 5

Rectus Abdominis

Question 6

Which layer of the rectus sheath, above the arcuate line, is made up of the combined aponeuroses of the internal oblique and transversus abdmoninis?

Answer 6

Posterior Layer of the Rectus Sheath

Question 7

Which layer of the rectus sheath, above the arcuate line, is made of the combined aponeurosis of the external and internal oblique muscles?

Answer 7

Anterior Layer of the Rectus Sheath