. The anatomical record. Anatomy; Anatomy. DE\TELOPMENT OF MAMMALIAN CHORDA DORSALIS 237 space is differentiated beneath them; the caudal end of the head process assuming the form of a compressed coknnn of cells, its cells presenting radial arrangement about a narrow central lumen. This differentiation leads to the formation of a struc- ture long known as the chordal canal, which constitutes an im- portant phase in the anlage and morphogenesis of the chorda dorsahs. In figure 6, A to D, there are reproduced a series of drawings of sections of an embryonic area of guinea pig, re-. Fig. 6 A to D
. The anatomical record. Anatomy; Anatomy. DE\TELOPMENT OF MAMMALIAN CHORDA DORSALIS 237 space is differentiated beneath them; the caudal end of the head process assuming the form of a compressed coknnn of cells, its cells presenting radial arrangement about a narrow central lumen. This differentiation leads to the formation of a struc- ture long known as the chordal canal, which constitutes an im- portant phase in the anlage and morphogenesis of the chorda dorsahs. In figure 6, A to D, there are reproduced a series of drawings of sections of an embryonic area of guinea pig, re-. Fig. 6 A to D, from cross sections of an embryonic shield of ttie guinea nis removed 13 days and 12 hours after insemination; showing early stages of chordal T,t TolT '^^' '"*''?' '"""' embraces 160 sections having 7 m thickness. X -OO- A, 3oth section, through head process, B, 53rd section, through chordal canal, L, 84th section, through region of the primitive node, D, 106th section through primitive streak and primitive groove, , head process; chordal canal; pr.,,., primitive node; , region of primitive streak and primitive 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 Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
