Lacrimal hamulus
| Lacrimal hamulus | |
|---|---|
| Details | |
| Part of | lacrimal bone |
| System | skeletal |
| Identifiers | |
| Latin | hamulus lacrimalis |
| TA98 | A02.1.09.004 |
| TA2 | 747 |
| FMA | 57606 |
| Anatomical terminology | |
The lacrimal hamulus is a small, hook-like bony projection of the lacrimal bone. It is a continuation of the posterior lacrimal crest. It articulates with the lacrimal tubercle of the maxilla, and completes the upper orifice of the lacrimal canaliculus. It sometimes exists as a separate piece, and is then called the lesser lacrimal bone.
Structure
[edit]The lacrimal hamulus is a small, hook-like bony projection of the lacrimal bone.[1] It is a continuation of the posterior lacrimal crest of the lacrimal bone.[2] It articulates with the lacrimal tubercle of the maxilla.[2][3] This completes the upper orifice of the lacrimal canaliculus.
Relations
[edit]The lacrimal hamulus is usually around 9 mm from the infraorbital foramen, around 20 mm from the inferior orbital fissure, and around 31 mm from the beginning of the posterior lacrimal crest.[4]
Variation
[edit]The lacrimal hamulus develops from its own site of primary ossification of cartilage. Because of this, it sometimes exists as a separate piece, and is then called the lesser lacrimal bone.
See also
[edit]References
[edit]
This article incorporates text in the public domain from page 164 of the 20th edition of Gray's Anatomy (1918)
- ^ Gupta, Nishi (2021), Gupta, Nishi (ed.), "Radiological Anatomy of the Lacrimal Drainage System", Endoscopic Dacryocystorhinostomy, Singapore: Springer, pp. 35–53, doi:10.1007/978-981-15-8112-0_4, ISBN 978-981-15-8112-0, S2CID 228890577, retrieved 2021-09-23
- ^ a b Chmielewski, Piotr Paweł (2021). "New Terminologia Anatomica: cranium and extracranial bones of the head". Folia Morphologica. 80 (3): 477–486. doi:10.5603/FM.a2019.0129. ISSN 1644-3284. PMID 31802475.
- ^ Gupta, Nishi (2021), Gupta, Nishi (ed.), "Anatomy of Lacrimal Drainage System", Endoscopic Dacryocystorhinostomy, Singapore: Springer, pp. 9–21, doi:10.1007/978-981-15-8112-0_2, ISBN 978-981-15-8112-0, S2CID 228907568, retrieved 2021-09-23
- ^ Ganesh, N. Praveen; Maity, Pushan; Raja, D. Alagar; Rao, R. V. M. Surya; Narayanamurthy, S.; Prasath, A. (2020-11-01). "Triangulating the ledge: radiographic study of the floor of orbit and derivation of a novel template". British Journal of Oral and Maxillofacial Surgery. 58 (9): e104–e108. doi:10.1016/j.bjoms.2020.07.016. ISSN 0266-4356. PMID 32800403. S2CID 221143195.
