List of Cranial Bones and Bone Landmarks

Region View Bone Bone Landmarks Cranium Frontal Frontal Supraorbital foramen

Nasal

Sphenoid Superior orbital fissure Inferior orbital fissure Optic foramen (canal)

Ethmoid Perpendicular plate Superior nasal concha Middle nasal concha

Inferior nasal concha

Lacrimal

Zygomatic

Mandible Body Ramus Alveolar processes Angle Mental foramen

Cranium Lateral Maxilla Infraorbital foramen Mandible Coronoid process Condylar process/Articular surface Mandibular notch Body Ramus Mental foramen

Zygomatic Temporal process

Temporal Zygomatic process Styloid process Mastoid process External auditory (acoustic) meatus

Sphenoid Greater wing

Other Bones Nasal, Lacrimal, Occipital, Frontal

Other Landmarks Coronal suture, Squamous suture, Lambdoid suture, Sagittal suture (superior view) Region View Bone Bone Landmarks Cranial Floor Superior Frontal Frontal sinus (not always visible) w/ calvaria removed Ethmoid Cribiform plate Olfactory foramina Crista galli

Sphenoid Sella turcica (Pituitary fossa) Greater wing Lesser wing

Temporal Pterous portion

Occipital Foramen magnum Cranium Inferior Maxilla Palatine process (hard palate) w/ mandible removed Palatine Horizontal plate (hard palate)

Vomer

Sphenoid

Temporal Mastoid process Styloid process Mandibular process

Occipital External occipital protuberance Foramen magnum Occipital condyles Orbit Frontal Orbital Bones Frontal, Maxilla, Zygomatic, Lacrimal, Ethmoid, Sphenoid, Palatine

Nasal Cavity Frontal Ethmoid Middle nasal concha, Perpindicular plate Boney septum Vomer Inferior nasal concha Nasal Sinuses Frontal Bones w/ sinuses Frontal sinus, Sphenoidal sinus, Ethmoidal sinus, Maxillary sinus