orbital fossa

orbital fossa

[′ȯr·bəd·əl ′fäs·ə]
(invertebrate zoology)
A depression from which the eyestalk arises on the front of the carapace of crustaceans.
References in periodicals archive ?
Her right eye had significant edema and could not be examined; however, the hook appeared to enter the orbit beneath the inferior eyelid, below the globe and through the roof of the orbital fossa (Figure 1).
After obtaining a four view skull series x-ray (Figure 2), it became evident the object traveled through the right orbital fossa superiorly, with the tip projecting over the medial right frontal lobe anterior to the pituitary, fracturing the posterior supero-medial orbital wall.