Section 66
Chapter 65,649

Ultrastructure and cytochemistry of secretory cells in the skin of the leech, Dina lineata

Molinas, M.; Huguet, G.

Journal of Morphology 216(3): 295-304


ISSN/ISBN: 1097-4687
PMID: 29865436
DOI: 10.1002/jmor.1052160305
Accession: 065648542

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The ultrastructure and histochemical features of the two types of secretory cells in leech skin are described. Pear-shaped cells secrete mucus containing carboxylated mucosubstances, while tubular cells produce a mucus containing a mixture of neutral, carboxylated, and sulfated mucosubstances. Pear-shaped secretory cells have two types of neuroglandular junctions, one containing dense-core serotonergic vesicles and the other small clear vesicles. Tubular secretory cells have large terminals, with many clear vesicles thought to be cholinergic. © 1993 Wiley-Liss, Inc.

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