CSFA Advanced Surgical Anatomy 2

Question 1

Which nerve is at greatest risk during a right hemicolectomy due to its course along the lateral abdominal wall?

Accepted Answer

Iliohypogastric nerve

Answer

The iliohypogastric nerve courses along the lateral abdominal wall and can be injured during flank or right-sided abdominal incisions.

Question 2

The triangle of Calot, critical for safe cholecystectomy, is bounded superiorly by which structure?

Accepted Answer

Liver (visceral surface)

Answer

The triangle of Calot is bounded superiorly by the visceral surface of the liver, medially by the common hepatic duct, and inferiorly by the cystic duct.

Question 3

During a posterior approach to the hip, which nerve is most at risk from excessive internal rotation or retraction?

Accepted Answer

Sciatic nerve

Answer

The sciatic nerve exits the greater sciatic foramen and lies posterior to the hip, making it vulnerable during posterior hip approaches.

Question 4

The recurrent laryngeal nerve is most vulnerable during which thyroid surgical maneuver?

Accepted Answer

Ligation of the inferior thyroid artery near the gland

Answer

The RLN crosses near or behind the inferior thyroid artery close to the gland, so ligation near the parenchyma risks nerve injury.

Question 5

Which anatomical landmark identifies the level of the aortic bifurcation during open abdominal aortic surgery?

Accepted Answer

L4 vertebral body

Answer

The aorta bifurcates into the common iliac arteries at approximately the level of the L4 vertebral body.

CSFA - Certified Surgical First Assistant Practice Test

CSFA - Certified Surgical First Assistant Practice Test

CSFA Advanced Surgical Anatomy 2