The anatomy of the papilla foliata of the human infant / by Frederick Tuckerman.

  • Tuckerman, Frederick, 1857-
Date:
[1888]
Catalogue details

Licence: Public Domain Mark

Credit: The anatomy of the papilla foliata of the human infant / by Frederick Tuckerman. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    an alternate aiTangement of the tiers. In a single instance a bulb was detected pushing its way up from the sub-epithelial tissue, between two adjacent ones, but not in contact with them. The basal end and lower third of this bulb rest in a cavity of the mucosa, and its apex penetrates the deeper layers of the epithelium. I estimated the number of bulbs in each lateral papilla at about 1500. This calculation was made from the papilla foliata of an infant four months old. The bulbs vary considerably in size, shape, and general appearance, but most of them possess a well-defined neck, which sometimes projects for a short distance beyond the outer homo- geneous layer of epithelium. In a few bulbs the outer ex- tremity of the cover-cells had separated. It is possible that this appearance of the apex of a bulb has been mistaken by some observers for the peripheral processes of the taste-cells protruding through the free opening. Non-medullated nerve fibres enter the bases of the folds, and their terminal branches ran towards the sides containing the taste-bulbs. Farther than this I was unable to trace them. EXPLANATION OF PLATE XVIII. Upper Figure. Transverse vertical section through papilla foliata of an infant four months old. Fd., folds; S.R., secondary ridges; Ep., epithelium; i?'., fiuTow; F'., invaginated furrow; T.B., taste-bulbs; S.D., serous ducts; Mm., mucous membrane, x 18. EPiPtATA in Author's Paper on Fiber zihetUcus, January 1888. Page 1.35, line 7,/or colloidin, read cclloidin. „ 136, „ 15,/or exists, reacZ rests. „ 138, „ 19,/or gland, reafZ band.