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Histological and certain histochemical studies on the respiratory system of chicken. II. Trachea, syrinx, bronchi and lungs


, : Histological and certain histochemical studies on the respiratory system of chicken. II. Trachea, syrinx, bronchi and lungs. Indian Journal of Animal Sciences 41(1): 37-45

In White Leghorn fowls ossification of the hyaline cartilages of trachea, syrinx and bronchi commenced at 6 months of age. The trachea was lined with pseudo-stratified ciliated columnar epithelium with goblet cells. The intra-epithelial glands appeared in proximal half of the trachea. The tunica propriasubmucosa was non-glandular. In the syrinx the epithelial lining varied from simple squamous to pseudo-stratified ciliated columnar or non-keratinized stratified squamous epithelium.

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