In the following diagram, identify the labeled bony landmarks and openings. Identify the bones by using the colors indicated. In the following diagram, identify the labeled bony landmarks and openings. Identify the bones by using the colors indicated. Solution Answer: 13. Ethmoid bone 14. Foramen rotundum 15. Foramen ovale 16. Foramen spinosum 17. Foramen lacerum 18. Internal acoustic meatus 19. Foramen magnum 20. Lesser wing of sphenoid 21. Greater wing of sphenoid 22. Hypophyseal fossa 23. Temporal bone (petrous portion) 24. Jugular foramen 25. Medial pterygoid plate of sphenoid bone 26. lateral pterygoid plate of sphenoid bone 27. Foramen ovale 28. styloid process 29. Jugular foramen 30. Foramen magnum 31. Temporal bone (zygomatic process) 32. carotid canal 33. Mastoid process 34. Occipital condyle.