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Transverse vertical section through papilla foliata of a 4-month-old infant

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(x18) "The papillae foliatae, or gustatory lamellae of Turner, of the human tongue, offer an excellent area in which to study the taste-bulbs. They consist of five to eight irregular folds or ridges, with rounded or flattened crests, separated from each other by furrows which vary much in breadth and depth. Occasionally the bottom of a furrow is invaginated upwards into a ridge (F') which usually bears a few taste-bulbs.” Legend: (Ep.) epithelium, (F.) furrow, (F') invaginated furrow, (Fd.) folds, (S.D.) serous ducts, (S.R.) secondary ridges, (T.B.) "taste-bulbs" (taste buds), (Mm.) mucous membrane. (Source: Plate XVII in: Tuckerman F. The anatomy of the papilla foliata of the human infant. J Anat Physiol 1888;22 [Vol. 2]:499-501. Edited by Dr. Douglas J Lanska to improve detail and contrast.)