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Updated: Aug 31, 2026

Two-step Approach to Explore Early- and Late-stages of Organ Formation in the Avian Model: The Thymus and Parathyroid Glands Organogenesis Paradigm
Published on: June 17, 2018
The adrenergic and cholinergic innervation of the thyroid chicken gland
Justyna Baryła1, Grazyna Greniuk, Mirosław Lakomy
1Department of Vertebrate Zoology and Anatomy, University of Szczecin, Poland.
Abstract:
The morphology and distribution of the cholinergic and adrenergic nerve fibres were described in the thyroid gland of the domestic hen. The adrenergic structures were visualised with glyoxylic acid and with immunohistochemical staining for tyrosine hydroxylase (TH), the marker for adrenergic nerve structures. Cholinergic structures were visualised using the Karnovsky and Roots method. It was found that the thyroid gland is supplied with numerous adrenergic and cholinergic nerve fibres, which occur as small or large bundles or single nerve fibres. These were located around blood vessels, under the fibrous capsule and in the vicinity of secretory vesicles.
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