ASPS Anatomy, Physiology & Surgical Planning 3

Question 1

Which aesthetic facial subunit principle guides incision placement to minimize visible scarring?

Accepted Answer

Incisions placed at the junction between adjacent subunits

Answer

Aesthetic subunit theory holds that scars at the borders between subunits are less visible because the eye perceives boundaries rather than interruptions.

Question 2

A patient undergoes a pedicled latissimus dorsi flap. Postoperatively, which functional deficit is most likely?

Accepted Answer

Weakness in shoulder adduction and internal rotation

Answer

Harvest of the latissimus dorsi muscle results in weakness of shoulder adduction, extension, and internal rotation.

Question 3

In cleft lip repair, the orbicularis oris muscle is repaired in which orientation to restore function?

Accepted Answer

Transversely across the cleft in anatomic continuity

Answer

Restoring the orbicularis oris in transverse continuity across the cleft recreates the muscular ring essential for lip competence and growth.

Question 4

Which structure forms the posterior boundary of the anatomical snuffbox, relevant in radial forearm flap elevation?

Accepted Answer

Extensor pollicis longus tendon

Answer

The extensor pollicis longus tendon forms the posterior (ulnar) boundary of the snuffbox, while EPB and APL form the anterior boundary.

Question 5

When planning a transposition flap, the arc of rotation is measured from the:

Accepted Answer

Pivot point to the most distal point of the flap

Answer

The arc of rotation is determined by measuring from the pivot point to the flap's most distal point, which must reach the defect.

(ASPS) American Society of Plastic Surgeons Practice Test

(ASPS) American Society of Plastic Surgeons Practice Test

ASPS Anatomy, Physiology & Surgical Planning 3