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绿蜥蜴（绿蜥）肺部的功能解剖学

Functional anatomy of the lungs of the green lizard, Lacerta viridis.

作者信息

Meban C

出版信息

J Anat. 1978 Feb;125(Pt 2):421-31.

PMID:624686
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1235609/
Abstract

The gas-exchange area in the lung of Lacerta viridis has been studied by light microscopy and electron microscopy. The interior of the lung in this species is partitioned into air sacs by radially disposed septa. The surfaces of each septum are covered by a continuous epithelium, the cells of which are termed 'pneumonocytes'. Deep to the epithelium there is a close-meshed plexus of capillaries. The middle layer of the septum contains smooth muscle and fibrous tissue. Two varieties of pneumonocytes can be identified. The type I cells are squamous and give off attenuated sheets of cytoplasm which spread widely over the septal surface; these sheets contain few organelles. The type II cells are more compact and possess many organelles; their osmiophilic inclusion bodies are especially conspicuous. The pulmonary capillaries of Lacerta are evaginated into the air sacs and often display marked attenuation of their endothelium. The possible functional significance of these features is discussed.

摘要

已通过光学显微镜和电子显微镜对绿蜥蜴肺部的气体交换区域进行了研究。该物种肺部内部被呈放射状排列的隔膜分隔成气囊。每个隔膜表面覆盖着一层连续的上皮，其细胞被称为“肺细胞”。上皮下方是紧密交织的毛细血管丛。隔膜的中间层包含平滑肌和纤维组织。可识别出两种类型的肺细胞。I型细胞呈鳞状，发出薄片状的细胞质，广泛分布在隔膜表面；这些薄片含有很少的细胞器。II型细胞更紧凑，拥有许多细胞器；它们的嗜锇性包涵体特别明显。绿蜥蜴的肺毛细血管向气囊内突出，其内皮常表现出明显的变薄。讨论了这些特征可能的功能意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/ab8e1d12aea9/janat00360-0212-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/769b7b2e0fbc/janat00360-0206-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/72b5eb04ca48/janat00360-0206-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/e1af60668b0a/janat00360-0208-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/362882f2a546/janat00360-0209-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/da1abc14ebd4/janat00360-0210-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/c2487d676769/janat00360-0210-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/5d993b09db9e/janat00360-0211-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/6fe44fad273f/janat00360-0212-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/ab8e1d12aea9/janat00360-0212-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/769b7b2e0fbc/janat00360-0206-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/72b5eb04ca48/janat00360-0206-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/e1af60668b0a/janat00360-0208-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/362882f2a546/janat00360-0209-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/da1abc14ebd4/janat00360-0210-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/c2487d676769/janat00360-0210-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/5d993b09db9e/janat00360-0211-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/6fe44fad273f/janat00360-0212-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33bd/1235609/ab8e1d12aea9/janat00360-0212-b.jpg

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本文引用的文献

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