Gut Development - Anatomy & Physiology - Revision history

Bara at 19:09, 28 June 2012

2012-06-28T19:09:07Z

Bara at 13:42, 24 January 2011

2011-01-24T13:42:26Z

Eca02csb at 18:22, 19 January 2011

2011-01-19T18:22:01Z

Eca02csb: /* Introduction */

2011-01-19T18:20:37Z

Introduction

Eca02csb at 18:20, 19 January 2011

2011-01-19T18:20:00Z

Bara at 14:59, 30 December 2010

2010-12-30T14:59:51Z

Bara: moved Developmental Biology - Gut Development - Anatomy & Physiology to Gut Development - Anatomy & Physiology

2010-09-10T15:17:58Z

moved Developmental Biology - Gut Development - Anatomy & Physiology to Gut Development - Anatomy & Physiology

Bara at 15:17, 10 September 2010

2010-09-10T15:17:50Z

Bara: Text replace - "[[Small Intestine - Anatomy & Physiology|" to "[[Small Intestine Overview - Anatomy & Physiology|"

2010-09-07T12:56:16Z

Text replace - "[[Small Intestine - Anatomy & Physiology|" to "[[Small Intestine Overview - Anatomy & Physiology|"

Bara: Text replace - "[[Forestomach - Anatomy & Physiology|" to "[[Monogastric Stomach - Anatomy & Physiology|"

2010-09-06T13:15:41Z

Text replace - "[[Forestomach - Anatomy & Physiology|" to "[[Monogastric Stomach - Anatomy & Physiology|"

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 == Introduction  ==
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 &nbsp;
+{{OpenPages}}
 [[Category:Developmental_Biology]][[Category:A&P_Done|Category:A&amp;P_Done]]

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-{{no pics}}
+== Introduction  ==
-==Endoderm Development==
+The endoderm will form the lining of the gut and the organs that develop from it. Splanchnic mesoderm surrounds the endoderm and orginates from the lateral plate mesoderm. It will form the smooth [[Muscles - Anatomy & Physiology|muscle]] of the gut that are used in peristalsis. <br> <br>
-[[Category:Developmental Biology]]
+== Endoderm Development  ==
-[[Category:To Do - Review]]

← Older revision		Revision as of 18:22, 19 January 2011
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	[[Category:Developmental Biology]]		[[Category:Developmental Biology]]
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 {{no pics}}
 ==Introduction==
-The endoderm will form the lining of the gut and the organs that develop from it. Splanchnic mesoderm surrounds the endoderm and orginates from the lateral plate mesoderm. It will form the smooth [[Muscles - Anatomy & Physiology|muscle]] of the gut that are used for peristalsis.
+The endoderm will form the lining of the gut and the organs that develop from it. Splanchnic mesoderm surrounds the endoderm and orginates from the lateral plate mesoderm. It will form the smooth [[Muscles - Anatomy & Physiology|muscle]] of the gut that are used in peristalsis.
 <br />
 <br />
 ==Endoderm Development==
 During endodermal development, the anterior end of the embryo invaginates. This invagination is called the '''anterior intestinal portal''' or '''(AIP)'''. The opposing anterior ends of the endoderm are brought together by this invagination, allowing both ends to fuse together to close the endoderm. A similar process occurs at the posterior of the embryo where an invagination occurs called the '''caudal intestinal portal''' or '''(CIP)'''. This invagination closes the posterior of the endoderm. The invagination and closure spread to the middle of the anterior - posterior axis where they meet at the yolk stalk. After the yolk has been metabolised, the yolk stalk can be closed.

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 {{no pics}}
 ==Introduction==
 The endoderm will form the lining of the gut and the organs that develop from it. Splanchnic mesoderm surrounds the endoderm and orginates from the lateral plate mesoderm. It will form the smooth [[Muscles - Anatomy & Physiology|muscle]] of the gut that are used for peristalsis.
+<br />
 ==Endoderm Development==
+During endodermal development, the anterior end of the embryo invaginates. This invagination is called the '''anterior intestinal portal''' or '''(AIP)'''. The opposing anterior ends of the endoderm are brought together by this invagination, allowing both ends to fuse together to close the endoderm. A similar process occurs at the posterior of the embryo where an invagination occurs called the '''caudal intestinal portal''' or '''(CIP)'''. This invagination closes the posterior of the endoderm. The invagination and closure spread to the middle of the anterior - posterior axis where they meet at the yolk stalk. After the yolk has been metabolised, the yolk stalk can be closed.
-#At the anterior of the embryo, the endoderm invaginates.
+<br />
-#*This invagination is called the '''Anterior Intestinal Portal (AIP)'''.
+<br />
 ==Regionalisation of the Gut==
+The gut tube will develop into the [[Oesophagus - Anatomy & Physiology|oesophagus]], [[Monogastric Stomach - Anatomy & Physiology|stomach]], [[Small Intestine Overview - Anatomy & Physiology|small intestine]], [[Large Intestine - Anatomy & Physiology|large intestine]] and [[Anus - Anatomy & Physiology|anus]]. Regionalisation of these tissues occurs through co-ordinated endoderm and splanchnic mesoderm development. The endoderm governs splanchnic mesoderm development by releasing a signalling factor (sonic hedgehog) which induces differential mesoderm development. Sonic hedgehog controls '''HOX - A''' gene expression. The gut tube is closed at both ends during early development by the anterior '''buccopharyngeal membrane''' and the posterior '''cloacal membrane'''. As the head folds ventrally, it comes into contact with the buccopharyngeal membrane causing it to break down and  opening the '''buccal cavity''' which is lined by ectoderm. At the posterior, the ectoderm invaginates to contact the cloacal membrane inducing the cloacal membrane to break down. Once this has occurred, this opens the '''anal passage'''.
 [[Category:Developmental Biology]]
 [[Category:To Do - A&P]]

← Older revision		Revision as of 14:59, 30 December 2010
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	[[Category:Developmental Biology]]		[[Category:Developmental Biology]]
		+	[[Category:To Do - A&P]]

← Older revision	Revision as of 15:17, 10 September 2010
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← Older revision		Revision as of 15:17, 10 September 2010
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−	~~{{toplink~~
−	~~\|backcolour =~~
−	~~\|linkpage =Developmental Biology - Anatomy & Physiology~~
−	~~\|linktext =Developmental Biology~~
−	~~\|maplink = Developmental Biology (Concept Map)- Anatomy & Physiology~~
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−	}}
−	~~<br>~~
−	~~__TOC__~~
	==Introduction==		==Introduction==

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 ==Regionalisation of the Gut==
-*The gut tube will develop into the [[Oesophagus - Anatomy & Physiology|oesophagus]]; [[Monogastric Stomach - Anatomy & Physiology|stomach]]; [[Small Intestine - Anatomy & Physiology|small intestine]]; [[Large Intestine - Anatomy & Physiology|large intestine]]; and [[Anus - Anatomy & Physiology|anus]].
+*The gut tube will develop into the [[Oesophagus - Anatomy & Physiology|oesophagus]]; [[Monogastric Stomach - Anatomy & Physiology|stomach]]; [[Small Intestine Overview - Anatomy & Physiology|small intestine]]; [[Large Intestine - Anatomy & Physiology|large intestine]]; and [[Anus - Anatomy & Physiology|anus]].
 *Regionalisation of these tissues occurs through co-ordinated endoderm and splanchnic mesoderm develop.
 *The endoderm governs splanchnic mesoderm development by releasing a signalling factor (sonic hedgehog) which induces differential mesoderm development.