. The elements of experimental embryology. Embryology, Experimental; Embryology. Fig. 98 Self-differentiation of median heart- rudiments in vitro. The heart-rudi- ments together with some of the neighbouring ento-mesoderm were removed from early tail-bud stages of Bornhinator, and cultivated as ex- plants in epidermal jackets. Above, part of a micro-cinema film of an explanted heart, 11 days after opera- tion; a. systole; ^.diastole. Below, longitudinal section through a similar explant showing differentiation into a auricle; v, ventricle. In addition, /, liver; d, yolk-sac; £), gut, also pre-
. The elements of experimental embryology. Embryology, Experimental; Embryology. Fig. 98 Self-differentiation of median heart- rudiments in vitro. The heart-rudi- ments together with some of the neighbouring ento-mesoderm were removed from early tail-bud stages of Bornhinator, and cultivated as ex- plants in epidermal jackets. Above, part of a micro-cinema film of an explanted heart, 11 days after opera- tion; a. systole; ^.diastole. Below, longitudinal section through a similar explant showing differentiation into a auricle; v, ventricle. In addition, /, liver; d, yolk-sac; £), gut, also pre- sent in explant. (From Stohr, Arch. Mikr. Anat. u. Entwmech. cii, 1924.) notochord, neural tube, muscle-segments, epidermis and kidney tubes,2 auditory vesicles, gut, liver, and pancreas-rudiments of amphibian embryos treated in this manner develop for considerable periods of time, and produce their appropriate structures, including functional ciliated epithelium and secretory tissue with actual secre- tion : portions of gut thus differentiated may even show peristaltic action.^ Paired heart-rudiments of Urodele embryos at the neurula stage,. Hiraiwa, 1927; Nicholas and Rudnick, 1931, 2 Erdmann, 1931. Holtfreter, 1931A, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Huxley, Julian, 1887-1975; De Beer, Gavin, Sir, 1899-1972. New York [Hafner Pub. Co. ]
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectembryology
