File:Bailey308.jpg - Revision history

S8600021 at 04:26, 27 Mayıs 2011

2011-05-27T04:26:12Z

← Older revision		Revision as of 15:26, 27 Mayıs 2011
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	The primary mesonephric tubules are arranged segmentally, one appearing in each segment as far back as the pelvic region. Thus the intermediate cell mass may be considered as a series of nephrotomes, corresponding to the sclerotomes and myotomes. The segmental character is soon lost, however, owing to the inequality of growth between the mesonephros and the other segmental structures, and to the development of the secondary and tertiary tubules. As stated above, the first mesonephric tubules appear immediately caudal to the pronephros From this point their formation gradually progresses in a caudal direction as far as the pelvic region. By the further development of the primary and by the addition of the secondary and tertiary tubules and the glomeruli, the mesonephros as a whole increases in size and forms a large structure which projects into the ccelom on each side of the body, forming the so-called mesonephric or Wolffian ridge. It reaches the height of its development in the human embryo about the fifth or sixth week, at which time it extends from the region of the heart to the pelvic region (Fig. 308). Each organ is attached to the dorsal body wall by a distinct mesentery which, at its cephalic end, also sends off a band to the diaphragm the diaphragmatic ligament of the mesonephros.		The primary mesonephric tubules are arranged segmentally, one appearing in each segment as far back as the pelvic region. Thus the intermediate cell mass may be considered as a series of nephrotomes, corresponding to the sclerotomes and myotomes. The segmental character is soon lost, however, owing to the inequality of growth between the mesonephros and the other segmental structures, and to the development of the secondary and tertiary tubules. As stated above, the first mesonephric tubules appear immediately caudal to the pronephros From this point their formation gradually progresses in a caudal direction as far as the pelvic region. By the further development of the primary and by the addition of the secondary and tertiary tubules and the glomeruli, the mesonephros as a whole increases in size and forms a large structure which projects into the ccelom on each side of the body, forming the so-called mesonephric or Wolffian ridge. It reaches the height of its development in the human embryo about the fifth or sixth week, at which time it extends from the region of the heart to the pelvic region (Fig. 308). Each organ is attached to the dorsal body wall by a distinct mesentery which, at its cephalic end, also sends off a band to the diaphragm the diaphragmatic ligament of the mesonephros.

			The peritoneum is reflected over the surface of the mesonephros, and on the ventro-medial side the mesothelium becomes thickened to form the genital ridge (Figs. 276 and 308).

	{{Template:Bailey 1921 Figures}}		{{Template:Bailey 1921 Figures}}

	[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]] [[Category:Kollmann]]		[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]] [[Category:Kollmann]]

S8600021: /* Fig. 308. Human embryo of 5 weeks. The ventral body wall has been removed to disclose the mesonephroi */

2011-05-27T04:24:26Z

Fig. 308. Human embryo of 5 weeks. The ventral body wall has been removed to disclose the mesonephroi

← Older revision		Revision as of 15:24, 27 Mayıs 2011
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	==Fig. 308. Human embryo of 5 weeks~~. The ventral body wall has been removed to disclose the mesonephroi~~==		==Fig. 308. Human embryo of 5 weeks==

	Kollmann.		The ventral body wall has been removed to disclose the mesonephroi. (Kollmann)

			The primary mesonephric tubules are arranged segmentally, one appearing in each segment as far back as the pelvic region. Thus the intermediate cell mass may be considered as a series of nephrotomes, corresponding to the sclerotomes and myotomes. The segmental character is soon lost, however, owing to the inequality of growth between the mesonephros and the other segmental structures, and to the development of the secondary and tertiary tubules. As stated above, the first mesonephric tubules appear immediately caudal to the pronephros From this point their formation gradually progresses in a caudal direction as far as the pelvic region. By the further development of the primary and by the addition of the secondary and tertiary tubules and the glomeruli, the mesonephros as a whole increases in size and forms a large structure which projects into the ccelom on each side of the body, forming the so-called mesonephric or Wolffian ridge. It reaches the height of its development in the human embryo about the fifth or sixth week, at which time it extends from the region of the heart to the pelvic region (Fig. 308). Each organ is attached to the dorsal body wall by a distinct mesentery which, at its cephalic end, also sends off a band to the diaphragm the diaphragmatic ligament of the mesonephros.

	{{Template:Bailey 1921 Figures}}		{{Template:Bailey 1921 Figures}}

	[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]] [[Category:Kollmann]]		[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]] [[Category:Kollmann]]

S8600021 at 06:30, 6 March 2011

2011-03-06T06:30:27Z

← Older revision		Revision as of 17:30, 6 March 2011
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	{{Template:Bailey 1921 Figures}}		{{Template:Bailey 1921 Figures}}

	[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]]		[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]] [[Category:Kollmann]]

S8600021 at 22:41, 2 February 2011

2011-02-02T22:41:45Z

← Older revision		Revision as of 09:41, 3 February 2011
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			==Fig. 308. Human embryo of 5 weeks. The ventral body wall has been removed to disclose the mesonephroi==

			Kollmann.

	{{Template:Bailey 1921 Figures}}		{{Template:Bailey 1921 Figures}}

	[[Category:Human]] [[Category:~~Coelom~~]] [[Category:Genital]] [[Category:Week 5]]		[[Category:Human]] [[Category:Renal]] [[Category:Genital]] [[Category:Week 5]]

S8600021 at 01:13, 25 Ocak 2011

2011-01-25T01:13:38Z

← Older revision		Revision as of 12:13, 25 Ocak 2011
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	{{Template:Bailey 1921 Figures}}		{{Template:Bailey 1921 Figures}}

	[[Category:Human]] [[Category:Coelom]] [[Category:Genital]]		[[Category:Human]] [[Category:Coelom]] [[Category:Genital]] [[Category:Week 5]]

S8600021: {{Template:Bailey 1921 Figures}} Category:Human Category:Coelom Category:Genital

2011-01-25T01:13:01Z

{{Template:Bailey 1921 Figures}} Category:Human Category:Coelom Category:Genital

New page

{{Template:Bailey 1921 Figures}}

[[Category:Human]] [[Category:Coelom]] [[Category:Genital]]