Lacrimal bone
| Lacrimal bone | |
| A | |
| forms the lateral wall of the nasal cavity under the skull, forms the posterior half of the bony fossa for the lacrimal sac |
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:
- cranially with the frontal bone,
- ventrally and caudally with the upper jaw,
- dorsally with orbital surface olfactory bones.
Due to its position, it looks laterally into the orbit and medially into the nasal cavity.
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.
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Related Articles
References
- ČIHÁK, Radomír. Anatomy I. 2. edition. Prague : Grada, 2001. 516 pp. pp. 161. ISBN 978-80-7169-970-5.
