Assertion: epidermis | /r/Synonym | the rhamphotheca
Facets:
Source sentences:
text: Two bony projections—the upper and lower mandibles—covered with a thin keratinized layer of epidermis known as the rhamphotheca.
text: Two bony projections—the upper and lower mandibles—are covered with a thin keratinized layer of epidermis known as the rhamphotheca.