Lacrimal bone

The lacrimal bone belongs to the small, thin bones in the skull. It is placed in the inner wall of the orbital.

Anatomical Structures
The lacrimal bone is embedded in the ventral space of the skull in such a way that it contacts: Due to its position, it looks laterally into the orbit and medially into the nasal cavity.
 * cranially with the frontal bone,
 * ventrally and caudally with the upper jaw,
 * dorsally with orbital surface olfactory bones.

The lacrimal bone contains a pit for the lacrimal sac, fossa sacci lacrimalis, in the structure of the sulcus lacrimalis. The nasolacrimal duct continues from there.

Most common variations
Due to its size, the lacrimal bone can be completely absent. The nasolacrimal duct is thus formed by other bones.

Related Articles

 * Bones of the neurocranium
 * Orbits
 * Nasal cavity