Histological Aspects of the Syrinx of the Male Mallard (Anas platyrhynchos)

@article{Frank2006HistologicalAO,
  title={Histological Aspects of the Syrinx of the Male Mallard (Anas platyrhynchos)},
  author={Tochukwu Frank and Irene Walter and Alexander Probst and Horst Erich K{\"o}nig},
  journal={Anatomia},
  year={2006},
  volume={35}
}
The syrinx of the duck is characterized by a conspicious sexual dimorphism. In the male mallard, a large osseous bulla is present on the left syringeal side. The present work describes the structures of the male syrinx, which were studied by means of histochemistry, immunohistochemistry and electron microscope. In the right distal tympanum a caudally oriented, protruding structure was observed, which was identified as the valvula syringealis. The syringeal structures like valvula, tympanum… 
Anatomical Structure of the Syrinx in the Mallard (Anas platyrhynchos)
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It was determined that syrinx in male ducks was found to be asymmetrical and had a large expansion on the left side called bulla tympaniformis.
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The electron microscopic examination revealed numerous blood capillaries surrounded by fibroblasts and numerous immune cells, including mast cells and wandering leukocytes, within the tympanum mucosa, which provides a detailed knowledge about the syrinx in male budgerigars.
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The syrinx of partridge can serve as a good ex vivo model for phonation research by comparing the epithelium and its mucus characteristics to human laryngeal secretions and conclusions were drawn.
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The cartilage rings in middle parts of trachea which seem to be “H”-shaped forked and also the tympanum which is completely fused and ossified characteristic for the goose are found.
Glycohistochemistry of the lateral tympanic membrane in the syrinx of the Denizli cock
The Denizli cock is a special race that has harmonious long crowing. In this study, the syrinx of the Denizli cock was studied by using glycohistochemical analyses. Paraffin sections were stained
A study of gross morphological and histological syringeal features of true francolins (Galliformes: Francolinus, Scleroptila, Peliperdix and Dendroperdix spp.) and spurfowls (Pternistis spp.) in a phylogenetic context
TLDR
Gross morphological and histological syringeal anatomy of francolins, spurfowls and sister taxa are explored to test whether differences are concordant with a molecular-based hypothesis, and differences found were the presence of a shield-versus diamond-shaped tympanum among francolin and spurfowlers respectively.
Functional morphology of the sound‐generating labia in the syrinx of two songbird species
TLDR
The size and microstructure of the labia are related to their acoustic function in two songbird species with different acoustic characteristics, the white‐crowned sparrow and zebra finch and a mechanism for their biomechanical function is suggested.
Morphogenesis of the rhea (Rhea americana) respiratory system in different embryonic and foetal stages
TLDR
The identification of normal events that occur during the development of the rhea respiratory system, an important model that has not previously been described, is allowed to be identified.
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