The skull is composed of 22 bones, including 8 cranial bones and 14 facial bones. The cranial bones are the frontal, occipital, ethmoid, sphenoid, and two parietal and temporal bones each. The facial bones include the vomer, mandible, two maxillae, two zygomatic, two nasal, two nasal concha, two lacrimal, and two palatine bones. Key skull features include the sagittal, coronal, lambdoidal, and squamosal sutures, as well as the orbit.

1. Skull bones and features I

2. Skull (cephalic region) = 22 bones
• Cranial = 8
– Frontal (1)
– Occipital (1)
– Ethmoid (1)
– Sphenoid (1)
– Parietal (2)
– Temporal (2)
• Facial = 14
–
–
–
–
–
–
–
–
Vomer (1)
Mandible (1)
Maxillae (2)
Zygomatic (2)
Nasal (2)
Nasal Concha(2)
Lacrimal (2)
Palatine (2)

5. Skull features 1
• Sutures
– Sagittal
– Coronal (frontal)
– Lambdoidal
– Squamosal
• “Orbit”

6. Sagittal suture

7. Coronal Suture

8. Lambdoidal Suture

9. Squamosal Suture

10. Orbit

11. Practice