Lacrimal bone
From WikiLectures
| 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[edit | edit source]
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[edit | edit source]
Due to its size, the lacrimal bone can be completely absent. The nasolacrimal duct is thus formed by other bones.
Links[edit | edit source]
Related Articles[edit | edit source]
References[edit | edit source]
- ČIHÁK, Radomír. Anatomy I. 2. edition. Prague : Grada, 2001. 516 pp. pp. 161. ISBN 978-80-7169-970-5.
