CCA Craniofacial Anatomy & Landmarks 2

Question 1

Which cranial suture separates the two parietal bones at the midline?

Accepted Answer

Sagittal suture

Answer

The sagittal suture runs anteroposteriorly along the midline, separating the two parietal bones.

Question 2

The nasion is defined as the junction of which anatomical structures?

Accepted Answer

Nasal bones and frontal bone

Answer

The nasion is the craniometric point at the intersection of the internasal suture and the frontonasal suture.

Question 3

An anaplastologist designing an auricular prosthesis should identify the anatomical landmark known as the tragus. What is its location?

Accepted Answer

The small cartilaginous projection anterior to the ear canal

Answer

The tragus is the small, cartilaginous projection that partially covers the external acoustic meatus anteriorly.

Question 4

Which bone forms the primary structure of the zygomatic arch?

Accepted Answer

Zygomatic bone and temporal bone

Answer

The zygomatic arch is formed by the zygomatic process of the temporal bone joining the temporal process of the zygomatic bone.

Question 5

The philtrum is a surface landmark relevant to lip and nasal prosthetics. It is best described as:

Accepted Answer

The vertical groove between the nose and the cupid's bow of the upper lip

Answer

The philtrum is the midline vertical groove on the external surface of the upper lip, bounded superiorly by the base of the columella.

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