Embryonic mice with cells of the maxillary prominence in blue. (IMAGE)
Caption
Images of increasingly older mouse embryos (top to bottom, DPC = days post conception) with images on the left side showing the whole head in profile view and images on the right side showing just the jaw tip area. Cells in the maxillary prominence (mxp, blue) eventually form almost the entire upper jaw (premaxilla). This bone is separate from the septomaxilla, which remains part of the jaw or cheek in reptiles, but becomes larger and higher up on the face in mammals. (en = external nostril)
Credit
Image by Hiroki Higashiyama, CC BY-SA 4.0, first published in PNAS
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Credit must be given to the creator. Adaptations must be shared under the same terms.
License
CC BY-SA