Orbital Floor Anatomy. The nasolacrimal duct. The lateral walls however diverge at an angle of 45 degrees.
The lateral walls however diverge at an angle of 45 degrees. The orbit is composed of 7 bones. Only three of the four orbital walls the medial the superior and the lateral walls extend into the apex.
Each of these plays a role in keeping the eyeball protected.
The frontal bone separates the orbit from the anterior cranial fossa. The orbital floor separated from the lateral wall by the inferior orbital fissure consists of the zygomatic maxillary and palatine bones. 2 Lamina papyracea of the ethmoid bone. The adult orbital margin is approximately rectangular with a horizontal dimension of 40 mm and a vertical dimension of 35 mm.
