ASPS Anatomy, Physiology & Surgical Planning 4

Question 1

The superior gluteal artery perforator (SGAP) flap exits the pelvis through which anatomical structure?

Accepted Answer

The greater sciatic foramen above the piriformis

Answer

The superior gluteal vessels exit the pelvis through the greater sciatic foramen above the piriformis muscle, which is the perforator source for the SGAP flap.

Question 2

During facelift surgery, injury to the marginal mandibular branch of the facial nerve most commonly results in:

Accepted Answer

Asymmetric smile with drooping of the oral commissure

Answer

The marginal mandibular branch innervates the depressor anguli oris and depressor labii inferioris; injury causes drooping of the ipsilateral oral commissure.

Question 3

Which Mathes and Nahai muscle flap classification describes a muscle with a single dominant pedicle, such as the tensor fascia lata?

Accepted Answer

Type I

Answer

Mathes and Nahai Type I muscles have one dominant vascular pedicle, as seen in the tensor fascia lata.

Question 4

In hand surgery, the A1 pulley of the flexor tendon sheath is located at the level of:

Accepted Answer

The metacarpophalangeal joint

Answer

The A1 pulley overlies the MCP joint and is released in trigger finger surgery to allow smooth tendon gliding.

Question 5

When using tissue expanders for breast reconstruction, capsular contracture risk is primarily reduced by:

Accepted Answer

Textured expander surfaces and antibiotic irrigation

Answer

Textured expander surfaces and antibiotic pocket irrigation significantly reduce bacterial biofilm formation and subsequent capsular contracture.

(ASPS) American Society of Plastic Surgeons Practice Test

(ASPS) American Society of Plastic Surgeons Practice Test

ASPS Anatomy, Physiology & Surgical Planning 4