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Ciliated Receptors in the Pharyngeal Terminal Buds of Larval Lampetra planeri (Bloch) (Cyclostomata)
Author(s) -
Baatrup Erik
Publication year - 1983
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1983.tb00643.x
Subject(s) - biology , basal lamina , lampetra , anatomy , basal (medicine) , microbiology and biotechnology , ultrastructure , lamprey , endocrinology , paleontology , insulin
Terminal buds on the gill arches of larval Lampetra planeri have been investigated by scanning and transmission electron microscopy. Each terminal bud is composed of two types of elongated cells, which extend from an apical depression to the basal lamina; one type bears a pair of cilia and the other, microvilli. In addition there are peripheral and basal cells. Nerve‐fibre profiles are lacking within the terminal bud epithelium and contacts between nerves and ciliated cells are established through holes in the basal lamina. The presence of ciliated receptor cells with such a mode of innervation presents a distinct contrast to the morphology of the taste buds of gnathostome vertebrates.