Bone: Base of skull
Base of the skull. Upper surface
Base of the skull. Inferior surface
Latin	basis cranii

The base of skull is the most inferior area of the skull, composed of the endocranium and lower parts of the skull roof.

Contents 1 Structures 1.1 Bones 1.2 Sinuses 1.3 Foramina of the skull 1.4 Sutures 1.5 Other 2 Additional images

[edit] Structures

Structures found at the base of the skull are for example:

• Foramen magnum
• Foramen ovale (skull)

[edit] Bones

• Ethmoid bone
• Sphenoid bone
• Occipital bone
• Frontal bone
• Parietal bone
• Temporal bone
  • Petrous portion of the temporal bone

[edit] Sinuses

• Occipital sinus
• Superior sagittal sinus
• Superior petrosal sinus

[edit] Foramina of the skull

• Foramen cecum (frontal bone)
• Optic foramen
• Foramen lacerum
• Foramen rotundum
• Jugular foramen
• Internal auditory meatus
• Mastoid foramen
• Sphenoidal emissary foramen
• Foramen spinosum

[edit] Sutures

• Frontoethmoidal suture
• Sphenofrontal suture
• Sphenopetrosal suture
• Sphenoethmoidal suture
• Petrosquamous suture
• Sphenosquamosal suture

[edit] Other

• Sphenoidal lingula
• Subarcuate fossa
• Dorsum sellae
• Jugular process
• Petro-occipital fissure
• Condylar canal
• Jugular tubercle
• Tuberculum sellae
• Carotid groove
• Fossa hypophyseos
• Posterior clinoid processes
• Sigmoid sulcus
• Internal occipital protuberance
• Internal occipital crest
• Ethmoidal spine
• Vestibular aqueduct
• Chiasmatic groove
• Middle clinoid process
• Groove for sigmoid sinus
• Trigeminal ganglion
• Middle cranial fossa
• Anterior cranial fossa
• Middle meningeal artery
• Cribriform plate
• Posterior cranial fossa
• Nasociliary nerve
• Hypoglossal canal

[edit] Additional images

Base of skull

v • d • e Bones of head and neck: compound structures of skull (TA A02.1.00.002-052, GA 2.178-199) Neurocranium Calvaria (Diploë) Asterion · Pterion · Stephanion · Bregma · Lambda Fossae: anterior cranial fossa · middle cranial fossa · posterior cranial fossa · cranial cavity Base of skull Fontanelles: anterior · posterior · sphenoidal · mastoid Facial skeleton Nasion · Gonion Both dacryon · zygomatic arch · temporal fossa · infratemporal fossa · pterygomaxillary fissure · pterygopalatine fossa Orbit: Foramina (inferior orbital fissure)