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 language | English |
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Pages (from-to) | 328 |
Number of pages | 1 |
Journal | IRCS Medical Science |
Volume | 10 |
Issue number | 4 |
Publication status | Published - 1982 |
Externally published | Yes |
ASJC Scopus subject areas
- General Biochemistry,Genetics and Molecular Biology