𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Histology, histochemistry, and ultrastructure of the harderian gland of the snake Coluber viridiflavus

✍ Scribed by Sergio Minucci; Gabriella Chieffi Baccari; Loredana di Matteo

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
764 KB
Volume
211
Category
Article
ISSN
0362-2525

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Analyses of the histology, histochemistry, and ultrastructre of the Harderian gland of Coluber viridiflavus prove the gland to be compound acinar and to produce a seromucous secretion. Acinar cells (type I) contain secretory granules that are composite, consisting ultrastructurally of three distinct parts that are sharply separated. They are similar to the β€œspecial secretory granules” described in the cells of the Harderian gland of the lizard Podarcis s. sicula. Some acini of the most anterior and posterior parts of the gland are mucous. Acinar cells (type II) of this type contain secretory granules that are Alcian blue/PAS positve. At the ultrastructural level, they appear homogeneous and of low density, characteristic of mucous secretions. These mucus‐secreting anterior and posterior parts of the Harderian gland may by considered as regions of intial differentiation of the anterior and posterior lacrimal galnds.

πŸ“œ SIMILAR VOLUMES

Ultrastructure of the blood vessels in t
Ultrastructure of the blood vessels in the harderian gland of the hamster (mesocricetus auratus): Existence of sinusoids
✍ A. Menendez-Pelaez; Dr. D. Tolivia; M. J. Rodriguez-Colunga; R. J. Reiter πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 874 KB

## Abstract The Harderian gland blood supply of female and male hamsters was studied using light and electron microscopy. A profuse vascularization surrounding secretory acini was observed. Among the blood vessels, the existence of large and irregular sinusoidal capillaries was apparent. These sinu

Morphology and histochemistry of the mas
Morphology and histochemistry of the mast cells of snakes
✍ Dagoberto Sottovia-Filho πŸ“‚ Article πŸ“… 1974 πŸ› John Wiley and Sons 🌐 English βš– 645 KB

## Abstract Mast cells were demonstrated in eight species of snakes, using special fixation techniques to prevent solubilization of cytoplasmic granules. Toluidine blue O and azure A were the major stains and observations were made under light microscope including cytophotometric analysis. The mas

Morphology of the Harderian gland of the
Morphology of the Harderian gland of the Gecko, Tarentola mauritanica
✍ Gabriella Chieffi Baccari; Giovanni Chieffi; Loredana Di Matteo; Demetrio Dafnis πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 366 KB

The Harderian gland of the gecko, Tarentola mauritanica, was studied at the histological, histochemical, and ultrastructural levels. It is a nonlobate compound acinar gland surrounded by a thin capsule of connective tissue. Numerous connective tissue-type mast cells, ultrastructurally similar to tho

Morphology of the Harderian gland of som
Morphology of the Harderian gland of some Australian geckos
✍ Susan J. Rehorek; Bruce T. Firth; Mark N. Hutchison πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 407 KB

This study of the morphology, histology, histochemistry, and ultrastructure of the Harderian gland in Geckos (Squamata, Gekkota) revealed previously unreported variation. The gecko Harderian gland is unlike that of other squamates in that each cell of the secretory epithelium has both lipid and prot