sigmoid sulcus
11Bone — This article is about the skeletal organ. For other uses, see Bone (disambiguation) and Bones (disambiguation). For the tissue, see Osseous tissue. Drawing of a human femur Bones are rigid organs that constitute part of the endoskeleton of… …
12Mastoid foramen — Bone: Mastoid foramen Left temporal bone. Inner surface. (Mastoid foramen labeled at bottom left.) …
13Mastoid part of the temporal bone — Bone: Mastoid portion of the temporal bone Side view of head, showing surface relations of bones …
14Suprameatal triangle — Bone: Suprameatal triangle Relations of the brain and middle meningeal artery to the surface of the skull. 1. Nasion. 2. Inion. 3. Lambda. 4. Lateral cerebral fissure. 5. Central sulcus. AA. Reid …
15Condylar canal — Bone: Condyloid canal Occipital bone. Outer surface. (Condyloid canal visible at center left.) …
16Chiasmatic groove — Bone: Chiasmatic groove Sphenoid bone. Upper surface. (Sulcus chiasmaticus labeled at center) …
17Parietal bone — Bone: Parietal bone Figure 1 : Left parietal bone. Outer surface …
18Squama occipitalis — Bone: Squama occipitalis Occipital bone at birth. (Squama is top half, portion above foramen magnum.) …
19Frontal crest — Bone: Frontal crest Frontal bone. Inner surface. (Frontal crest visible at center but not labeled.) Latin crista frontalis Gray s …
20Optic 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 …
