. The development of the frog's egg; an introduction to experimental embryology. Embryology. Ch. XV] ORGANS FR0:M THE ECTODERM 165 The Appearance of Cilia oisr the Surface of the Embryo If the living embryo be examined at the time when the neural folds have appeared, it will be seen that the embiyo slowly rotates within the jelly-capsule. This rotation is the result of the activity of certain ciliated ectodermal cells. The distribution of these cells over the surface of the body has been recently described by Assheton ('96). Assheton states that at the time when the medullary folds are first v
. The development of the frog's egg; an introduction to experimental embryology. Embryology. Ch. XV] ORGANS FR0:M THE ECTODERM 165 The Appearance of Cilia oisr the Surface of the Embryo If the living embryo be examined at the time when the neural folds have appeared, it will be seen that the embiyo slowly rotates within the jelly-capsule. This rotation is the result of the activity of certain ciliated ectodermal cells. The distribution of these cells over the surface of the body has been recently described by Assheton ('96). Assheton states that at the time when the medullary folds are first visible, and even after they have begun to roll in, there are no traces of cilia on. 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 Morgan, Thomas Hunt, 1866-1945. New York, The Macmillan company; [etc. , etc. ]
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectembryology, bookyear1
