Important Skull Landmarks

Question 1

Cranial Bones

Answer 1

Frontal bone
Parietal bones (2)
Temporal bones (2)
Occipital bone
Sphenoid bone
Ethmoid bone

Question 2

Features of Cranial Bones

Question 3

Frontal Bone features

Answer 3

Supraorbital margin (2)
Supraorbital foramen (2)
(frontal sinus)

Question 4

Features of Temporal Bone

Answer 4

Styloid process
Mastoid process
Stylomastoid foramen
Carotid foramen
Jugular foramen
Zygomatic process
Mandibular fossa
External auditory meatus
Internal auditory meatus

Question 5

Occipital bone features

Answer 5

Foramen magnum
Occipital condyle (2)
External occipital protuberance
Superior nuchal line (2)
Inferior nuchal line (2)

Question 6

Sphenoid Bone Features

Answer 6

Body
Sella turcica (“Turkish saddle”)
Sphenoid sinus
Greater wing (2)
Lesser wing (2)
Pterygoid process (4)
Optic foramen (2)
Superior orbital fissure (2)
Foramen ovale (2)
Foramen rotundum (2)

Question 7

Ethmoid Bone features

Answer 7

Cribriform plate
Olfactory foramina
Crista galli
Perpendicular plate
Lateral mass (2)
Ethmoidal sinuses
Superior nasal concha (2)
Middle nasal concha (2)

Question 8

Facial Bones

Answer 8

Nasal bones (2)
Lacrimal bones (2)
Zygomatic bones (2)
Maxillae (2)
Palatine bones (2)
Vomer
Inferior nasal conchae (2)
Mandible

Question 9

Zygomatic bone features

Answer 9

Temporal process

Question 10

Maxillae features

Answer 10

Infraorbital foramen

Question 11

Bones in the Orbits

Answer 11

Roof:
Frontal bone
Sphenoid bone

Lateral wall:
Zygomatic bone
Sphenoid bone

Medial wall:
Maxilla
Lacrimal bone
Ethmoid bone
Sphenoid bone

Floor:
Maxilla
Zygomatic bone
Sphenoid bone

Question 12

Nasal Septum

Answer 12

Separates the nasal cavity into left and right sides
Composed of cartilage (anteriorly) and bone (posteriorly)

Question 13

Paranasal Sinuses bones

Answer 13

frontal bone, sphenoid bone, ethmoid bone, and maxillae

Question 14

Hyoid Bone

Answer 14

Located in the anterior neck between the mandible and larynx