Lateral lingual swelling

Lateral lingual swelling

Infobox Embryology
Name = PAGENAME
Latin =
GraySubject = 241
GrayPage = 1102


Caption = Floor of pharynx of human embryo about twenty-six days old.


Caption2 = Floor of pharynx of human embryo of about the end of the fourth week.
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DorlandsPre = b_25
DorlandsSuf = 12199642
During the third week there appears, immediately behind the ventral ends of the two halves of the mandibular arch, a rounded swelling named the tuberculum impar, which was described by His as undergoing enlargement to form the buccal part of the tongue. More recent researches, however, show that this part of the tongue is mainly, if not entirely, developed from a pair of lateral swellings (or distal tongue bud) which rise from the inner surface of the mandibular arch and meet in the middle line.

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