Cranium, Facial Bones, and Paranasal Sinuses: Radiographic Anatomy

Vocabulary flashcards covering the radiographic anatomy of the skull, including the divisions and individual bones of the cranium.

Skull

The bony skeleton of the head that rests on the superior end of the vertebral column and is divided into 8 cranial bones and 14 facial bones.

Cranial Bones

A group of eight bones divided into the calvarium (skullcap) and the floor, fused in an adult to form a protective enclosure for the brain.

Facial Bones

A group of 14 bones that, together with the 8 cranial bones, make up the two main sets of bones of the skull.

Calvarium (Skullcap)

One of the two main divisions of the cranium, primarily consisting of four bones: the frontal, right parietal, left parietal, and occipital bones.

Floor (Base of the Cranium)

One of the two main divisions of the cranium, primarily consisting of four bones: the right temporal, left temporal, sphenoid, and ethmoid bones.

Frontal Bone

One of the four bones that primarily make up the calvarium (skullcap).

Parietal Bones (Right and Left)

Two cranial bones that are categorized as part of the calvarium (skullcap).

Occipital Bone

One of the four bones that primarily make up the calvarium (skullcap).

Temporal Bones (Right and Left)

Two cranial bones that are categorized as part of the cranial floor.

Sphenoid Bone

One of the four bones that primarily make up the floor of the cranium.

Ethmoid Bone

One of the four bones that primarily make up the floor of the cranium.