Inferior view of base of the skull: want to learn more about it?
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Inferior view of base of the skull
After completing this study unit you will be able to:
- List the bones seen on the inferior view of the skull.
- Identify the important bony features seen on the inferior view of the skull.
- Name the main foramina, fissures and canals and their contents.
The human skull consists of 22 bones that come together to enclose and protect the most important organ of the body: the brain. By looking at the skull from the inferior aspect, we can see 13 of those bones, which, from anterior to posterior are: the maxillae, the zygomatic bones, palatine bones, vomer, sphenoid bone, temporal bones, parietal bones and occipital bone. All of these present distinct bony features, as well as passageways that allow blood vessels and nerves to enter and exit the cranial cavity. Learn all about them by watching the video below!
Take a quiz
Try out this quiz to test your knowledge about the inferior view of the base of the skull.
To challenge yourself further, customize your own quiz to get a broader array of questions about the skull.
Take a closer look at these bones and their features by browsing our atlas gallery:
|Bones||Zygomatic bones (2), maxillae (2), palatine bones (2), vomer, sphenoid bone, temporal bones (2), occipital bone and parietal bones (2).|
Maxilla: incisive foramina, zygomatic process, palatine process
Palatine bone: transverse palatine suture, median palatine suture, greater and lesser palatine foramen
Sphenoid bone: greater wing, pterygoid process, pterygoid hamulus, foramen ovale, foramen spinosum
Temporal bone: petrotympanic fissure, carotid canal, jugular foramen, stylomastoid foramen, styloid process, mastoid process, mastoid foramen, mastoid notch
Occipital bone: foramen magnum, condylar canal, inferior and superior nuchal line, external occipital protuberance, external occipital crest
|Main foramina and contents||
Incisive foramen: nasopalatine nerve, sphenopalatine artery
Greater palatine foramen: greater palatine nerves, arteries and veins
Lesser palatine foramen: lesser palatine nerves, arteries and veins
Foramen ovale: mandibular nerve (CN V3), accessory meningeal artery, lesser petrosal nerve, emissary veins
Foramen spinosum: middle meningeal artery and vein, meningeal branch of mandibular nerve (CN V3)
Jugular foramen: internal jugular vein, inferior petrosal sinus, posterior meningeal artery, glossopharyngeal nerve, vagus nerve, accessory nerve (CN IX, X, XI)
Stylomastoid foramen: stylomastoid artery, facial nerve
Foramen magnum: medulla oblongata, vertebral artery
|Main fissures and contents||
Inferior orbital fissure: infraorbital nerve, zygomatic nerve, infraorbital nerve, artery and vein, inferior branch of inferior ophthalmic vein
Petrotympanic fissure: chorda tympani, anterior tympanic artery
|Main canals and contents||
Carotid canal: internal carotid artery, internal carotid plexus
Condylar canal: emissary veins, meningeal branch of occipital artery
Continue your learning
Now that you have learned about the inferior view, it’s time to tackle the superior and anterior views of the base of the skull.