raphe
raphe (RAY-fee) - n., a seam or ridge between two halves of an organ or other bodily tissue.
Usually from having developed separately in embryo then joined together. Examples include the groove down the middle of the tongue and the frenum underneath it (lingual raphe) and the seam on the roof of the mouth (palatine raphe -- incomplete closure of which is a cleft palate). From medical Latin, from Greek rhaphḗ, seam/suture, akin to rháptein, to sew/stitch together.
---L.
Usually from having developed separately in embryo then joined together. Examples include the groove down the middle of the tongue and the frenum underneath it (lingual raphe) and the seam on the roof of the mouth (palatine raphe -- incomplete closure of which is a cleft palate). From medical Latin, from Greek rhaphḗ, seam/suture, akin to rháptein, to sew/stitch together.
---L.