1. General Principles & Basic Science MCQs

During the anterior (Henry) approach to the proximal radius, the posterior interosseous nerve (PIN) must be protected. Which muscle is fully supinated to carry the PIN away from the surgical field?

The sural nerve is frequently harvested for nerve grafts. It is typically formed by the union of the medial sural cutaneous nerve and the sural communicating branch of the lateral sural cutaneous nerve. The lateral sural cutaneous nerve is a direct branch of which nerve?

The radial nerve descends in the spiral groove of the humerus. At approximately what distance proximal to the radiocapitellar joint line does the radial nerve pierce the lateral intermuscular septum to enter the anterior compartment?

The pectoralis major muscle has a complex bilaminar insertion onto the lateral lip of the bicipital groove. Which statement correctly describes the distinct anatomy of its sternocostal head insertion?

Which of the following genicular arteries passes anterior to the popliteus muscle and proximal to the head of the fibula, playing a key role in the knee's collateral circulation?

Which two tendons intersect at the Master Knot of Henry in the plantar aspect of the midfoot?

At what cervical level does the vertebral artery typically enter the transverse foramen?

The medial femoral circumflex artery (MFCA) provides the primary blood supply to the adult femoral head. Between which two muscles does its deep branch travel to reach the posterior capsule?

The posterior interosseous nerve (PIN) passes between the two heads of which muscle?

In the popliteal fossa, what is the anatomical relationship of the popliteal artery to the popliteal vein and tibial nerve?

The "corona mortis" is an anomalous vascular anastomosis that is at risk during the ilioinguinal approach to the acetabulum. It connects which two vascular systems?

Approximately how many centimeters proximal to the lateral malleolus does the superficial peroneal nerve pierce the crural fascia to become subcutaneous?

Which ligament is considered the primary restraint to anterior translation of the distal fibula relative to the tibia?

The saphenous nerve exits the adductor (Hunter's) canal by piercing which structure?

During a lateral transpsoas approach to the lumbar spine, which nerve is most at risk of injury when retracting the psoas muscle posteriorly at the L4-L5 disc space?

Which structure passes intra-articularly through a hiatus between the lateral meniscus and the posterolateral joint capsule?

During a posterior approach to the humerus, the radial nerve is at risk as it pierces the lateral intermuscular septum to enter the anterior compartment. On average, what is the distance from the lateral epicondyle to this point of penetration?

Which of the following structures forms the superior border of the quadrilateral space in the shoulder?

A surgeon is performing a standard anterior (Smith-Petersen) approach to the hip. To prevent denervation of the tensor fasciae latae (TFL), the dissection should remain superficial to what nerve?