the sphenoid bone is the name of the bone that makes up most of the posterior surface of orbit.
what is the name of the bone that makes up most of the posterior surface of orbit?
the sphenoid bone
temporal fossa





























the temporal fossa is a shallow depression on the side of the skull bounded by the temporal lines and terminating below the level of the zygomatic arch.





























section::::boundaries.





























bullet::::- medial: frontal bone, parietal bone, temporal bone, and sphenoid bone.





























bullet::::- lateral: temporal fascia





























bullet::::- anterior: posterior surface of the frontal process of the zygomatic bone and the posterior surface of the zygomatic process of the frontal bone.
temporal fossa
the posterior surface presents, at its upper part, a prominent ridge, the popliteal line, which extends obliquely downward from the back part of the articular facet for the fibula to the medial border, at the junction of its upper and middle thirds; it marks the lower limit of the insertion of the popliteus, serves for the attachment of the fascia covering this muscle, and gives origin to part of the soleus, flexor digitorum longus, and tibialis posterior. the triangular area, above this line, gives insertion to the popliteus. the middle third of the posterior surface is divided by a vertical ridge into two parts; the ridge begins at the popliteal line and is well-marked above, but indistinct below; the medial and broader portion gives origin to the flexor digitorum longus, the lateral and narrower to part of the tibialis posterior. the remaining part of the posterior surface is smooth and covered by the tibialis posterior, flexor digitorum longus, and flexor hallucis longus. immediately below the popliteal line is the nutrient foramen, which is large and directed obliquely downward.
tibia