tympanic bone
61Middle nasal concha — Bone: Middle nasal concha Ethmoid bone from behind …
62Condylar canal — Bone: Condyloid canal Occipital bone. Outer surface. (Condyloid canal visible at center left.) …
63Clivus (anatomy) — Bone: Clivus (anatomy) Superior view of the clivus …
64Chiasmatic groove — Bone: Chiasmatic groove Sphenoid bone. Upper surface. (Sulcus chiasmaticus labeled at center) …
65Ethmoid sinus — Bone: Ethmoid sinus Paranasal sinuses …
66Nuchal lines — Bone: Nuchal lines Occipital bone. Outer surface …
67Optic canal — Bone: Optic foramen 1: Foramen ethmoidale 2: Canalis opticus 3: Fissura orbitalis superior 4: Fossa sacci lacrimalis 5: Sulcus infraorbitalis 6: Fissura orbitalis inferior 7: Foramen infraorbitale …
68Mastoid canaliculus — Bone: Mastoid canaliculus Left temporal bone. Inferior surface. (Label for mastoid canaliculus is on left, sixth from the top.) Latin c. mastoideus Gray s …
69Frontal crest — Bone: Frontal crest Frontal bone. Inner surface. (Frontal crest visible at center but not labeled.) Latin crista frontalis Gray s …
70Internal occipital crest — Bone: Internal occipital crest Occipital bone. Inner surface. (Internal occipital crest not labeled, but occipital sinus is visible at center.) …
