Table of Contents To see the answers: highlight the space directly below the question (by holding down the mouse button and dragging across). The Cranium To what does the term "skull" refer? The skeleton of the head, including the teeth, hyoid bone and ear ossicles. What is the skull minus the mandible called? The cranium. What is the term for the brain case? The cranium - so some confusion can occur with the word 'cranium'. What is the rest of the skull called? The skeleton of the face. How many bones are there in the cranium (brain case)? Eight. Which also contribute to the facial skeleton? Sphenoid (by pterygoid process) and ethmoid. What are the junctions between the calvarial bones called? Sutures. Are they all similar? Which one in particular is different? No. The parietotemporal (or squamosal) suture, which does not interlock. Which bone(s) contribute to the anterior wall of the posterior cranial fossa? Temporals and occipital. Which bone(s) contribute to the anterior wall of the middle cranial fossa? Sphenoid. Which bone(s) contribute to the anterior wall of the anterior cranial fossa? Frontal. Which bone(s) contribute to the floor of the anterior cranial fossa? Frontal, ethmoid and sphenoid. Which bone(s) contribute to the floor of the middle cranial fossa? Sphenoid and temporal (both petrous and squamous parts). Which bone(s) contribute to the floor of the posterior cranial fossa? Occipital. Does the parietal bone contribute to the lateral wall of the posterior cranial fossa? Not really. Although there is a deep