Fossa For The Lacrimal Gland On The Frontal Bone

Description

Lacrimal fossa of the frontal bone occupies the anterolateral quadrant of the orbital roof, just posterior to the supraorbital margin and lateral to the shallow concavity that leads toward the trochlear fossa medially. The depression sits on the orbital plate of the frontal bone, near the zygomatic process, where the roof curves inferiorly into the lateral orbital wall. Bony edges are smooth but distinct, letting you appreciate how the fossa relates to the surrounding orbital rim and to the broader contour of the anterior cranial vault. A fixed, close-range perspective emphasizes the shallow, spoon-like surface rather than the external forehead table. For surgeons, this is a practical landmark when planning an anterior orbitotomy or lateral orbital roof exposure, because the lacrimal gland lies immediately inferior to this fossa and can be injured during dissection or when elevating periorbita. Trauma teaching also benefits: fractures of the supraorbital rim and orbital roof can propagate across the frontal orbital plate, altering the fossa and contributing to lacrimal gland displacement, ptosis, or dry eye symptoms. Fine surface modeling helps separate the lacrimal fossa from adjacent sutural anatomy, a common point of confusion in skull-based orientation, especially when the frontozygomatic region is used as a reference point. Use this illustration in gross anatomy lab manuals, head and neck modules, and ophthalmology or oculoplastics lectures when you need a precise bony correlate for lacrimal gland position. It also fits well in operative atlases and radiology teaching files that annotate orbital roof landmarks in CT or cone-beam CT correlation. Anatomical accuracy verified by SciePro's Medical Advisory Board.