premaxilla
Sign in to saveAlso known as incisive bone
The premaxilla (or praemaxilla) is one of a pair of small cranial bones at the very tip of the upper jaw of many animals, usually, but not always, bearing teeth. In humans, they are fused with the maxilla. The "premaxilla" of therian mammals has been usually termed as the incisive bone. Other terms used for this structure include premaxillary bone or os premaxillare, intermaxillary bone or os intermaxillare, and '''Goethe's bone'''.
Key facts
- Embryology.Name
- Premaxilla
- Embryology.Image
- Spinosaurus skull en.svg
- Embryology.Caption
- Skull of Spinosaurus aegyptiacus, premaxilla in orange
- Embryology.Image2
- Gray199.png
- Embryology.Caption2
- Human premaxilla and its sutures
- Embryology.Precursor
- Median nasal prominence
- Bone.Name
- Incisive bone
- Bone.Latin
- os incisivum
- Bone.Image
- Gray160.png
- Bone.Caption
- The bony palate and alveolar arch. (Premaxilla is not labeled, but region is visible.)
via Wikipedia infobox
Wikidata facts
- Subclass of
- bone
Show 2 more facts
- Commons category
- Os incisivum
- WordLift URL
- data.wordlift.io/wl01714/entity/premaxilla
via Wikidata · CC0
~6 min read
Encyclopedic overview
6 sectionsContents
- Human anatomy
- Incisive bone and premaxilla
- Embryology
- Evolutionary variation
- History
- References
The premaxilla (or praemaxilla) is one of a pair of small cranial bones at the very tip of the upper jaw of many animals, usually, but not always, bearing teeth. In humans, they are fused with the maxilla. The "premaxilla" of therian mammals has been usually termed as the incisive bone. Other terms used for this structure include premaxillary bone or os premaxillare, intermaxillary bone or os intermaxillare, and '''Goethe's bone.
==Human anatomy==
Excerpted from Wikipedia’s “premaxilla” article, available under the CC BY-SA 4.0 licence.