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. 1990 Sep;22(5):333-7.
doi: 10.1111/j.2042-3306.1990.tb04285.x.

A scanning electron microscopic study of the equine upper respiratory tract

M Pirie  1 , H M Pirie, N G Wright
Affiliations

A scanning electron microscopic study of the equine upper respiratory tract

M Pirie et al. Equine Vet J. 1990 Sep.

Abstract

The surface features of the upper respiratory tract of 20 clinically normal horses of various ages and types were studied with scanning electron microscopy. In the rostral part of the nasal cavity, there was a wide zone of non-ciliated epithelium whereas, caudally, the surface was well ciliated. This latter type of epithelium extended into the nasopharynx and guttural pouches although scattered areas of non-ciliated microvillous cells were also found.

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