The Cutaway View of the Medial Orbitofrontal Artery

Description

Arising from the anterior cerebral circulation along the gyrus rectus region, the medial orbitofrontal artery is traced on the inferomedial frontal lobe, running anterior to the anterior perforated substance and closely related to the olfactory tract and olfactory bulb. A cutaway of the anterior cranial fossa exposes the cribriform plate of the ethmoid, the planum sphenoidale, and the lesser wings of the sphenoid, with the vessel coursing just superior to these bony landmarks. More posteriorly, the proximal anterior cerebral artery and anterior communicating artery region can be appreciated in relation to adjacent arteries of the Circle of Willis, while superficial cortical veins and dural venous channels are rendered in blue for orientation. Spatial cues are clear: the orbitofrontal branches lie anterior and inferior, the A1 and ACom complex sits more posterior and medial. Small orbitofrontal vessels matter because they sit in the surgical corridor for interhemispheric and subfrontal approaches, where olfactory preservation and avoidance of frontal pole infarction are practical concerns. Injury or vasospasm of these branches can produce subtle but real deficits, including orbitofrontal contusions and anosmia-adjacent morbidity after anterior skull base trauma or aneurysm surgery in the ACom region. A tight neighborhood. Medical educators will find this view well suited for teaching the anterior cranial fossa and cortical branches of the anterior cerebral artery in neuroanatomy, neurosurgical anatomy, and head and neck courses, and it also supports textbook figures on Circle of Willis variants, anterior communicating artery aneurysm approaches, and skull base vascular relationships. It fits cleanly into operative planning decks and case-based lectures on subfrontal craniotomy and endoscopic anterior skull base work. Anatomical accuracy verified by SciePro's Medical Advisory Board.