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Fig. 2. Cross-section through tip of primary lung rudiment of a 21-somite chick

Cross-section (10 micron) through tip of primary lung rudiment of a 21-somite chick, 48 hours' incubation; carmine stain, series 0. A slightly later stage in the angioblastic proliferation from the dorsal sinus wall. The right portion of the cell-mass has begun to form a matted group of cells, (lie tip of the left valve of the sinus venosus. The left portion of the proliferation shows signs of liquefaction by which the common pulmonary vein is formed.

1922 Chicken Pulmonary: Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Fig 10 | Plate 1 | Plate 2 | Carnegie No.66 | Chicken Development | Respiratory

Links: Carnegie Institution of Washington - Contributions to Embryology | Chicken Development | Respiratory System Development

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