ABCS Surgical Anatomy for Cosmetic Procedures 3

Question 1

Which fascial layer is incised to access the submuscular plane during transaxillary breast augmentation?

Accepted Answer

Pectoralis fascia (clavipectoral fascia)

Answer

The clavipectoral (pectoralis) fascia must be divided to access the subpectoral plane when performing transaxillary submuscular breast augmentation.

Question 2

In a brow lift, which nerve must be identified and protected to avoid loss of forehead sensation?

Accepted Answer

Supraorbital and supratrochlear nerves

Answer

The supraorbital and supratrochlear nerves exit foramina at the superior orbital rim and provide sensation to the forehead; injury causes permanent forehead numbness.

Question 3

The 'danger zone' in neck liposuction where the marginal mandibular nerve is most at risk corresponds to the area:

Accepted Answer

1–2 cm below the mandibular border anteriorly near the angle

Answer

The marginal mandibular nerve dips below the mandibular border by up to 2 cm anteriorly, creating a danger zone during aggressive subplatysmal neck liposuction.

Question 4

Which blood supply concept explains why periumbilical perforators are critical to preserve during full abdominoplasty?

Accepted Answer

Zone of perfusion from DIEA perforators

Answer

The periumbilical perforators from the deep inferior epigastric artery (DIEA) supply the central abdominal flap; sacrificing them risks necrosis in the watershed zone.

Question 5

During a deep plane facelift, which anatomical structure separates the superficial from the deep compartments and is released to allow composite flap elevation?

Accepted Answer

Deep plane including SMAS and zygomatic retaining ligaments

Answer

The deep plane lift releases the SMAS along with the zygomatic and masseteric cutaneous ligaments, allowing the composite flap (SMAS + subcutaneous tissue + skin) to be mobilized as a unit.

(ABCS) American Board of Cosmetic Surgery Certification Practice Test

(ABCS) American Board of Cosmetic Surgery Certification Practice Test

ABCS Surgical Anatomy for Cosmetic Procedures 3