File:Pohlman1911 plate2.jpg - Revision history

Z8600021 at 23:59, 26 September 2018

2018-09-26T23:59:01Z

← Older revision		Revision as of 10:59, 27 September 2018
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	{{Pohlman1911 figures}}		{{Pohlman1911 figures}}
	[[Category:Carnegie Embryo 2]][[Category:Carnegie Embryo 80]]		[[Category:Carnegie Embryo 2]][[Category:Carnegie Stage 15]]
			[[Category:Carnegie Embryo 80]][[Category:Carnegie Stage 14]]

Z8600021 at 23:58, 26 September 2018

2018-09-26T23:58:24Z

← Older revision		Revision as of 10:58, 27 September 2018
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	==Plate 2==		==Plate 2==
	[[:File:Pohlman1911 plate2C.jpg\|'''Model C''']]. No. 9 (Mall 80; 5.0 mm; + ; 10; Good). [[Carnegie stage 14]]. x 100. About the same as the foregoing stage. Tail gut undergoing degenerative changes. This model shows marked degeneration of the tail gut. The allantois is narrow lumened, while the widely lumened ventral cloacal segment lies ventral to the hind gut and dorsal segment, and is separated from them by peritoneum. The Wolffian ducts open in the same situation as in the foregoing model, and present dorsal diverticulae, the renal buds. The ventral portion of the cloaca, especially the area above the cloacal membrane, is markedly widened and flattened. The lateral furrow of Model A was not present. This model conforms to the Keibel model of a 6.5 mm. embryo (a considerably older stage if we go by the greatest length rule). The cloaca has lost its more or less even width and attains its greatest lateral diameter at the level of the Wolffian orifices. There is no evidence of displacement of the Wolffian ducts from their primitive position in relation with the upper limit of the cloacal membrane.		[[:File:Pohlman1911 plate2C.jpg\|'''Model C''']]. No. 9 (Mall {{CE80}}; 5.0 mm; + ; 10; Good). [[Carnegie stage 14]]. x 100. About the same as the foregoing stage. Tail gut undergoing degenerative changes. This model shows marked degeneration of the tail gut. The allantois is narrow lumened, while the widely lumened ventral cloacal segment lies ventral to the hind gut and dorsal segment, and is separated from them by peritoneum. The Wolffian ducts open in the same situation as in the foregoing model, and present dorsal diverticulae, the renal buds. The ventral portion of the cloaca, especially the area above the cloacal membrane, is markedly widened and flattened. The lateral furrow of Model A was not present. This model conforms to the Keibel model of a 6.5 mm. embryo (a considerably older stage if we go by the greatest length rule). The cloaca has lost its more or less even width and attains its greatest lateral diameter at the level of the Wolffian orifices. There is no evidence of displacement of the Wolffian ducts from their primitive position in relation with the upper limit of the cloacal membrane.


	[[:File:Pohlman1911 plate2D.jpg\|'''Model D''']] {No. 12; Mall no. 2; 7.0 mm.) [[Carnegie stage 15]] This model fills in a gap in the Keibel series which may be considered quite an important one. The hind gut and all that pertains to the dorsal segment of the cloaca has retained an even caliber, while the ventral segment has widened progressively. The division of the cloaca may be traced to the level of the Wolffian orifices. The Wolffian ducts are much better developed and the renal anlage has resolved itself into distinct ureter and kidney segments. The segment of Wolffian duct between the orifice of the ureter and the cloaca is relatively shorter. The renal anlagen have assumed the position of dorsal convergence (mentioned by Keibel) but this is only a relative matter (see later). The tail gut has undergone further degeneration and has lost its lumen in part.		[[:File:Pohlman1911 plate2D.jpg\|'''Model D''']] {No. 12; Mall no. {{CE2}}; 7.0 mm.) [[Carnegie stage 15]] This model fills in a gap in the Keibel series which may be considered quite an important one. The hind gut and all that pertains to the dorsal segment of the cloaca has retained an even caliber, while the ventral segment has widened progressively. The division of the cloaca may be traced to the level of the Wolffian orifices. The Wolffian ducts are much better developed and the renal anlage has resolved itself into distinct ureter and kidney segments. The segment of Wolffian duct between the orifice of the ureter and the cloaca is relatively shorter. The renal anlagen have assumed the position of dorsal convergence (mentioned by Keibel) but this is only a relative matter (see later). The tail gut has undergone further degeneration and has lost its lumen in part.


	{{Pohlman1911 figures}}		{{Pohlman1911 figures}}
			[[Category:Carnegie Embryo 2]][[Category:Carnegie Embryo 80]]

Z8600021 at 04:52, 15 Haziran 2016

2016-06-15T04:52:35Z

← Older revision		Revision as of 15:52, 15 Haziran 2016
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	==Plate 2==		==Plate 2==
			[[:File:Pohlman1911 plate2C.jpg\|'''Model C''']]. No. 9 (Mall 80; 5.0 mm; + ; 10; Good). [[Carnegie stage 14]]. x 100. About the same as the foregoing stage. Tail gut undergoing degenerative changes. This model shows marked degeneration of the tail gut. The allantois is narrow lumened, while the widely lumened ventral cloacal segment lies ventral to the hind gut and dorsal segment, and is separated from them by peritoneum. The Wolffian ducts open in the same situation as in the foregoing model, and present dorsal diverticulae, the renal buds. The ventral portion of the cloaca, especially the area above the cloacal membrane, is markedly widened and flattened. The lateral furrow of Model A was not present. This model conforms to the Keibel model of a 6.5 mm. embryo (a considerably older stage if we go by the greatest length rule). The cloaca has lost its more or less even width and attains its greatest lateral diameter at the level of the Wolffian orifices. There is no evidence of displacement of the Wolffian ducts from their primitive position in relation with the upper limit of the cloacal membrane.


			[[:File:Pohlman1911 plate2D.jpg\|'''Model D''']] {No. 12; Mall no. 2; 7.0 mm.) [[Carnegie stage 15]] This model fills in a gap in the Keibel series which may be considered quite an important one. The hind gut and all that pertains to the dorsal segment of the cloaca has retained an even caliber, while the ventral segment has widened progressively. The division of the cloaca may be traced to the level of the Wolffian orifices. The Wolffian ducts are much better developed and the renal anlage has resolved itself into distinct ureter and kidney segments. The segment of Wolffian duct between the orifice of the ureter and the cloaca is relatively shorter. The renal anlagen have assumed the position of dorsal convergence (mentioned by Keibel) but this is only a relative matter (see later). The tail gut has undergone further degeneration and has lost its lumen in part.


	{{Pohlman1911 figures}}		{{Pohlman1911 figures}}

Z8600021: Z8600021 uploaded a new version of File:Pohlman1911 plate2.jpg

2016-06-15T04:40:52Z

Z8600021 uploaded a new version of File:Pohlman1911 plate2.jpg

← Older revision

Revision as of 15:40, 15 Haziran 2016

Z8600021 at 03:46, 12 Haziran 2016

2016-06-12T03:46:42Z

← Older revision		Revision as of 14:46, 12 Haziran 2016
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	{{Pohlman1911 figures}}		{{Pohlman1911 figures}}

	~~===Reference===~~
	~~{{Ref-Pohlman1911}}~~

	~~{{Footer}}~~

Z8600021 at 01:54, 11 Haziran 2016

2016-06-11T01:54:25Z

← Older revision		Revision as of 12:54, 11 Haziran 2016
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			==Plate 2==

			{{Pohlman1911 figures}}

	===Reference===		===Reference===
	~~Pohlman AG. The development of the cloaca in human embryos. (1911) Amer. J Anat. 12.~~		{{Ref-Pohlman1911}}

			{{Footer}}

Z8600021 at 01:46, 11 Haziran 2016

2016-06-11T01:46:59Z

← Older revision	Revision as of 12:46, 11 Haziran 2016
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		===Reference===
		Pohlman AG. The development of the cloaca in human embryos. (1911) Amer. J Anat. 12.

Z8600021 at 01:46, 11 Haziran 2016

2016-06-11T01:46:42Z

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