Base of skull - wikipedia Base of skull Skull base Base of the skull, inner surface Base of the skull, inferior or outer surface. Showing various muscle attachments. Details Identifiers Latin basis cranii externa et. interna MeSH D019291 TA A02. 1.00. 044 FMA 52801 Anatomical terms of bone ( edit on Wikidata ) The base of skull is the most inferior area of the skull. It is composed of the endocranium and the lower parts of the skull roof. Contents 1 Structure 1.1 Bones 1.2 Sinuses 1.3 Foramina of the skull 1.4 Sutures 1.5 Other 2 Additional images Structure Base of the skull. Inferior surface, attachment of muscles marked in red. Structures found at the base of the skull are for example : Bones There are five bones that make up the base of the skull : Ethmoid bone Sphenoid bone Occipital bone Frontal bone Temporal bone Exobasis Sinuses Occipital sinus Superior sagittal sinus Superior petrosal sinus Foramina of the skull Foramen cecum Optic foramen Foramen lacerum Foramen rotundum Foramen magnum Foramen ovale Jugular foramen Internal auditory meatus Mastoid foramen Sphenoidal emissary foramen Foramen spinosum Endobasis - resistances beams Endobasis - resistances nodes Sutures Frontoethmoidal suture Sphenofrontal suture Sphenopetrosal suture Sphenoethmoidal suture Petrosquamous suture Sphenosquamosal suture Other The foramina in the base of the skull are exit and entry - points for veins, arteries and cranial nerves. The cranial nerves as they exit through various foramina. 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 Additional images Base of the skull. Upper surface Base of skull Base of skull - crista galli, cribriform plate and foramen cecum Base of skull - sella turcica The anterior, middle and posterior cranial fossa in different colors Wikimedia Commons has media related to Cranial base. Compound structures of skull Neurocranium Calvaria Diploë Asterion Pterion Stephanion Inion Bregma Lambda Fossae anterior middle posterior cranial cavity Base of skull Fontanelle anterior posterior sphenoidal mastoid Facial skeleton Nasion Gonion Both dacryon zygomatic arch temporal fossa infratemporal fossa pterygomaxillary fissure pterygopalatine fossa Retrieved from `` https://en.wikipedia.org/w/index.php?title=Base_of_skull&oldid=831154640 '' Categories : Skull Hidden categories : Pages with unresolved properties Talk Contents About Wikipedia Azərbaycanca Deutsch Español فارسی Italiano Lietuvių Polski Slovenščina Edit links This page was last edited on 19 March 2018, at 01 : 38. About Wikipedia

Question: which bone is located at the base of the skull
Answer: Ethmoid bone