File:Rugh 071.jpg - Revision history

Z8600021 at 22:10, 3 December 2014

2014-12-03T22:10:36Z

← Older revision		Revision as of 09:10, 4 December 2014
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	==The Process of Gastrulation in the Frog==		==The Process of Gastrulation in the Frog==

	(A) The blastula stage, prior to any gastrulation movement.		* '''A''' - The blastula stage, prior to any gastrulation movement.
			* '''B''' - Movement of the blastula cells preliminary to gastrulation.
			* '''C''' - Blastoporal view of successive phases of gastrulation; (solid line) lip of blastopore, {dotted line) germ ring, to be subsequently incorporated into the blastoporal lips.
			* '''D''' - Lateral view of sagittal section during late gastrulation showing the origin of the mesial notochord, and the lateral mesoderm from the proliferated chorda-mesoderm cells at the dorsal lip.
			* '''E''' - Composite drawing to illustrate the germ layer relations in the later gastrula of the frog. The medullary plate (ectoderm) is not indicated; {alternate dots and dashes) notochord, {heavy stippling) notochord, {sparse stippling) mesoderm, (cellular markings) ectoderm.

	~~(B) Movement of the blastula cells preliminary to gastrulation.~~		:Links: [[Gastrulation]]

	~~(C) Blastoporal view of successive phases of gastrulation; (solid line) lip of blastopore, {dotted line) germ ring, to be subsequently incorporated into the blastoporal lips.~~

	~~(D) Lateral view of sagittal section during late gastrulation showing the origin of the mesial notochord, and the lateral mesoderm from the proliferated chorda-mesoderm cells at the dorsal lip.~~

	(E) Composite drawing to illustrate the germ layer relations in the later gastrula of the frog. The medullary plate (ectoderm) is not indicated; {alternate dots and dashes) notochord, {heavy stippling) notochord, {sparse stippling) mesoderm, (cellular markings) ectoderm.

	{{Rugh1951 footer}}		{{Rugh1951 footer}}

	[[Category:Gastrulation]]		[[Category:Gastrulation]]

Z8600021 at 02:42, 12 April 2013

2013-04-12T02:42:08Z

← Older revision		Revision as of 13:42, 12 April 2013
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	==The ~~process~~ of ~~gastrulation~~==		==The Process of Gastrulation in the Frog==

	(A) The blastula stage, prior to any gastrulation movement.		(A) The blastula stage, prior to any gastrulation movement.

Z8600021 at 02:41, 12 April 2013

2013-04-12T02:41:35Z

← Older revision		Revision as of 13:41, 12 April 2013
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	==~~Surface changes during~~ gastrulation==		==The process of gastrulation==

	~~===Reference===~~		(A) The blastula stage, prior to any gastrulation movement.

	~~Modified from Pasteels~~.		(B) Movement of the blastula cells preliminary to gastrulation.

			(C) Blastoporal view of successive phases of gastrulation; (solid line) lip of blastopore, {dotted line) germ ring, to be subsequently incorporated into the blastoporal lips.

			(D) Lateral view of sagittal section during late gastrulation showing the origin of the mesial notochord, and the lateral mesoderm from the proliferated chorda-mesoderm cells at the dorsal lip.

			(E) Composite drawing to illustrate the germ layer relations in the later gastrula of the frog. The medullary plate (ectoderm) is not indicated; {alternate dots and dashes) notochord, {heavy stippling) notochord, {sparse stippling) mesoderm, (cellular markings) ectoderm.

	{{Rugh1951 footer}}		{{Rugh1951 footer}}

			[[Category:Gastrulation]]

Z8600021 at 02:39, 12 April 2013

2013-04-12T02:39:32Z

← Older revision	Revision as of 13:39, 12 April 2013
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		==Surface changes during gastrulation==

		===Reference===

		Modified from Pasteels.


		{{Rugh1951 footer}}

Z8600021 at 02:05, 12 April 2013

2013-04-12T02:05:46Z

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