3D ANATOMY - Superior orbit section

This 3D printed model provides an in-depth view of the anterior and middle cranial fossae, with the calvaria and cerebrum removed to expose underlying structures.
Midbrain and Arterial Anatomy
The midbrain is sectioned at the level of the tentorium cerebelli, revealing the superior colliculi, cerebral peduncles, and substantia nigra. The vertebral arteries are clearly visible as they rise from the posterior cranial fossa and divide into the posterior cerebral arteries. Anteriorly, the internal carotid arteries emerge from the roof of the cavernous sinus, medial to the anterior clinoid processes and lateral to the optic nerves and chiasm. The oculomotor nerves penetrate the roof of the cavernous sinuses posterior to the carotid emergence.
Olfactory and Orbital Structures
In the anterior cranial fossa midline, the crista galli is retained with olfactory bulbs above the cribriform plates. On the right, removal of the frontal orbital plate exposes the frontal nerve, splitting into the supraorbital and supratrochlear nerves, lying above the levator palpebrae superioris. The trochlear nerve enters the superior oblique muscle medially. Ethmoidal air cells are visible in the medial orbital wall after partial removal of the lamina papyracea.
On the left, the levator palpebrae and superior rectus muscles are divided along with the frontal nerve to reveal the optic nerve, nasociliary nerve, ophthalmic artery, and superior ophthalmic vein within the intraconal space.
Facial Anatomy
The face has been dissected to show facial muscles around the orbit on the right, while the infraorbital nerve is visible on the left. The infratrochlear nerve, as well as facial veins and arteries, are also demonstrated.