CPCA Dermatology Anatomy and Terminology Questions and Answers

Question 1

A 45-year-old patient presents with prominent vertical rhytids between the eyebrows, creating a constant frowning expression. Which muscle is the primary target for neuromodulator treatment to address these specific lines?

Accepted Answer

Corrugator supercilii

Answer

The corrugator supercilii muscles are responsible for pulling the brows medially and downward, which directly causes the formation of vertical glabellar lines, often referred to as 'eleven lines'. The procerus muscle primarily creates horizontal lines at the root of the nose, the frontalis causes horizontal forehead lines, and the orbicularis oculi is responsible for 'crow's feet'.

Question 2

When performing dermal filler injections in the nasolabial fold area, which artery, a terminal branch of the facial artery, poses a significant risk for vascular occlusion as it courses superiorly along the side of the nose?

Accepted Answer

Angular artery

Answer

The angular artery is the terminal part of the facial artery and ascends along the side of the nose, adjacent to the nasolabial fold. Due to its location and variable depth in this high-treatment area, it is a critical vessel to be aware of to prevent vascular complications during filler injections.

Question 3

Which layer of the dermis is the most superficial, thinner, and primarily responsible for supplying nutrients to the epidermis and regulating temperature?

Accepted Answer

Papillary dermis

Answer

The dermis is composed of two layers: the superficial papillary dermis and the deeper reticular dermis. The papillary dermis is characterized by its thin, loose connective tissue, which contains a rich network of capillaries that nourish the avascular epidermis and help regulate skin temperature.

Question 4

A patient is concerned about deep folds that run from the corners of the mouth down towards the chin, giving them a sad or downturned appearance. What is the correct clinical term for these lines?

Accepted Answer

Marionette lines

Answer

The vertical lines that extend from the oral commissures down to the chin are correctly termed marionette lines or melomental folds. They are distinct from nasolabial folds, which run from the sides of the nose to the corners of the mouth.

Question 5

Which of the following best describes the primary function of the procerus muscle in facial expression?

Accepted Answer

Creates horizontal wrinkles at the root of the nose

Answer

The procerus is a pyramid-shaped muscle located between the eyebrows. Its main function upon contraction is to pull the medial part of the eyebrows downward, which results in the formation of transverse (horizontal) wrinkles over the bridge of the nose.

CPCA Exam Practice Test

CPCA Exam Practice Test

CPCA Dermatology Anatomy and Terminology Questions and Answers