. Quain's elements of anatomy . have the air-cells formed as their formative process consists essentially in the budding of hypoblastic Fig. 795. ■ Fig. 795. — Sectioit THROUGH AN ADTAKCEDEMBRYO OF A RABBITTO SHOW THE RELA-TIONS OF THE PERI-CARDIAL AND PLEURAL CAVITIES (from Balfour). ht, heart ; po, ijeri-cardial cavity ; ,pleural cavity ; Ig, lung ;al, alimeiitary tract; ao,dorsal aorta ; ch, noto-chord ; rj), rib ; st,sternum ; S]}.c, spiualcord. into mesoblastic sub-stance ; the hypoblastfurnishing the liningepithelium of thetubes, and the meso-blast the other ti
. Quain's elements of anatomy . have the air-cells formed as their formative process consists essentially in the budding of hypoblastic Fig. 795. ■ Fig. 795. — Sectioit THROUGH AN ADTAKCEDEMBRYO OF A RABBITTO SHOW THE RELA-TIONS OF THE PERI-CARDIAL AND PLEURAL CAVITIES (from Balfour). ht, heart ; po, ijeri-cardial cavity ; ,pleural cavity ; Ig, lung ;al, alimeiitary tract; ao,dorsal aorta ; ch, noto-chord ; rj), rib ; st,sternum ; S]}.c, spiualcord. into mesoblastic sub-stance ; the hypoblastfurnishing the liningepithelium of thetubes, and the meso-blast the other tis-sues, such as muscu-lar fibres, cartilage,blood-vessels, elastictissue, < division into larger lobes externally, three in the right and two inthe left lung, may be seen at a very early period in the human foetus. Asthe bronchial subdivision extends witliin the lungs, a tubercular orcoarsely granular ap]Dearance is seen over the outer surface, as observedby KoUiker in the human foetus in the latter half of the second is produced by the primitive air-cells placed at the extremities oframified tubes, which occupy the whole of the interior of t
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
