CRNFA Surgical Anatomy and Physiology

Question 1

Which layer of the abdominal wall is the deepest and must be closed separately during abdominal surgery?

Accepted Answer

Transversalis fascia

Answer

The transversalis fascia is the deepest layer of the abdominal wall and requires separate closure to prevent hernia formation.

Question 2

The portal triad in the liver consists of which structures?

Accepted Answer

Portal vein, hepatic artery, bile duct

Answer

The portal triad consists of a branch of the portal vein, hepatic artery, and bile duct running together within connective tissue.

Question 3

During a thyroidectomy, which nerve must be identified and preserved to prevent permanent hoarseness?

Accepted Answer

Recurrent laryngeal nerve

Answer

The recurrent laryngeal nerve innervates all intrinsic laryngeal muscles except the cricothyroid, and bilateral injury causes permanent hoarseness or airway obstruction.

Question 4

The Triangle of Calot is bounded by which structures?

Accepted Answer

Cystic duct, common hepatic duct, liver edge

Answer

The Triangle of Calot is defined by the cystic duct inferiorly, the common hepatic duct medially, and the liver edge superiorly, and contains the cystic artery.

Question 5

Which anatomical landmark is used to identify the ureter during pelvic surgery?

Accepted Answer

It crosses over the external iliac artery

Answer

The ureter crosses over the bifurcation of the common iliac artery (or the external iliac artery) and is identified at this crossing point during pelvic dissection.

CRNFA - Certified Registered Nurse First Assistant Practice Test

CRNFA - Certified Registered Nurse First Assistant Practice Test

CRNFA Surgical Anatomy and Physiology