A stereological analysis of the paleopulmo and the neopulmo respiratory regions of the avian lung (Streptopelia decaocto)

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Abstract

Possible quantitative structural differences in some components involved in the gas exchange in the paleopulmo and neopulmo regions of the avian lung were investigated. The lungs were fixed intratracheally with glutaraldehyde. They were then sampled to give stratified random blocks from these two regions of the lung. The diameters of the air capillaries and blood capillaries were estimated on semi-thin sections under oil immersion (x 2000) using a calibrated graticule. The surface density, harmonic mean thickness, and arithmetic mean thickness of the blood-gas barrier were estimated on electron micrographs at x 7500. There was no significant difference in the magnitude of these parameters in the paleopulmo and neopulmo.

Original languageEnglish
Pages (from-to)328
Number of pages1
JournalIRCS Medical Science
Volume10
Issue number4
Publication statusPublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • General Biochemistry,Genetics and Molecular Biology

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