Research Article
Development of the Lacrimal Apparatus in the Rabbit (Oryctolagus cuniculus) and Its Potential Role as an Animal Model for Humans
Table 5
Summary of route of NLD in mammals.
| | Rabbit (this study) [5] | Buffalo, Llama, Goat, Camel [14, 17, 20, 38] | Sheep, cats* and dogs* [15, 18] | Horse and Strepsirrhine primates [19, 24] | Cats# and primates [24, 37] |
| Number and type of flexures | 2 pronounced flexures: one at the upper NLD and one near the incisor tooth row | 2 flexures, in same place a rabbit, but less pronounced | 1 dorsal flexure (described as an arch) only | No flexures—straight NLD | No flexures—straight NLD | Descent of (maxillary) bony NLD canal | Diagonal | Diagonal | Diagonal | Diagonal | Vertical | Nasal opening of the NLD | Naris | Naris | Naris | Naris | Nasal cavity |
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*Refers to both dolichocephalic (elongate faced) and mesocephalic (normal faced). #Refers to brachycephalic (short faced).
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