Abdalla M A, Maina J N, King A S, King D Z, Henry J
Respir Physiol. 1982 Mar;47(3):267-78. doi: 10.1016/0034-5687(82)90057-3.
The lungs of 5 domestic fowls have been analysed electron microscopically by standard morphometric methods. The anatomical diffusing capacity has been calculated from the relevant parameters. The blood-gas barrier consisted essentially of endothelium, basal lamina, and a very thin squamous epithelial cell. Granular cells are absent and interstitial tissue is minimal. The following measurements are mean values applying to both lungs together, in the fixed state: lung volume, 25.0 cm3; total intrapulmonary blood volume, 6.9 cm3; volume of the exchange tissue, 11.6 cm3; pulmonary capillary blood volume, 3.51 cm3; pulmonary capillary haematocrit, 62.7%; total intrapulmonary air volume, 16.61 cm3; air capillary volume, 6.68 cm3; surface area of the blood-gas barrier, 2.08 m2; surface area of the barrier per unit volume of exchange tissue, 179.5 mm2/mm3; arithmetic mean thickness of the tissue barrier, 1.20 micrometers; harmonic mean thickness of the tissue barrier, 0.314 micrometers; harmonic mean thickness of the plasma layer, 0.342 micrometers. The values of the maximum and minimum morphometric diffusing capacities for the lung (DL02 m) were respectively 3.55 and 1.50 ml O2/min/mm Hg; those for the membrane (Dmo2 m) were 13.61 and 12.01 ml O2/min/mm Hg.
已采用标准形态测量方法对5只家禽的肺进行了电子显微镜分析。根据相关参数计算了解剖学扩散能力。气血屏障主要由内皮、基膜和一层非常薄的扁平上皮细胞组成。无颗粒细胞，间质组织极少。以下测量值为固定状态下两侧肺的平均值：肺体积25.0立方厘米；肺内总血容量6.9立方厘米；交换组织体积11.6立方厘米；肺毛细血管血容量3.51立方厘米；肺毛细血管血细胞比容62.7%；肺内总空气容量16.61立方厘米；气毛细血管容量6.68立方厘米；气血屏障表面积2.08平方米；每单位交换组织体积的屏障表面积179.5平方毫米/立方毫米；组织屏障算术平均厚度1.20微米；组织屏障调和平均厚度0.314微米；血浆层调和平均厚度0.342微米。肺的最大和最小形态测量扩散能力（DL02 m）值分别为3.55和1.50毫升氧气/分钟/毫米汞柱；膜的（Dmo2 m）值为13.61和12.01毫升氧气/分钟/毫米汞柱。
