Z8600021 at 04:56, 20 April 2019

2019-04-20T04:56:01Z

← Older revision		Revision as of 15:56, 20 April 2019
Line 53:		Line 53:

	* random orientation of smooth muscle cells (fibers)		* random orientation of smooth muscle cells (fibers)
	* '''muscularis propria''' (or fibromuscular coat)~~<ref><pubmed>~~21074688~~</pubmed></ref>~~		* '''muscularis propria''' (or fibromuscular coat){{#pmid:21074688\|PMID21074688}}
	** not like the rest of GIT smooth muscle organisation, which is divided into muscularis mucosa (inside submucosa), muscularis externa (circular and longitudinal)		** not like the rest of GIT smooth muscle organisation, which is divided into muscularis mucosa (inside submucosa), muscularis externa (circular and longitudinal)
	** various terminology used for this layer in different sources		** various terminology used for this layer in different sources

Z8600021: Created page with "{{Header}} ==Introduction== Gallbladder transverse section historic drawing. This section of notes gives an overview mainly of adult {{gallbl..."

2019-01-23T03:39:04Z

Created page with "{{Header}} ==Introduction== thumb|300px|Gallbladder transverse section historic drawing. This section of notes gives an overview mainly of adult {{gallbl..."

New page

{{Header}}
==Introduction==
[[File:Gray1096.jpg|thumb|300px|Gallbladder transverse section historic drawing.]]
This section of notes gives an overview mainly of adult {{gallbladder}} histology. Note that the term "gall bladder" can also be used for this organ.

[[File:HMsmall.jpg|left]] Page also provides further background information for Medicine phase 1 Health Maintenance B Hepatobiliary System 2 Practical [http://vslides.unsw.edu.au/VirtualSlideV2.nsf/id/9F207C Virtual Slides]. '''This page content is not part of the HMB practical class.'''

::'''HMB:''' [[Gastrointestinal Tract - Pancreas Histology|Pancreas Histology]] | [[Gastrointestinal_Tract_-_Liver_Histology|Liver Histology]] | [[Gastrointestinal_Tract_-_Gall_Bladder_Histology|Gallbladder Histology]] | [[Renal System Histology]]

{{Template:Gastrointestinal Tract Links}}

===Lab Audio===

[[File:Podcast_icon.jpg]] Wednesday 24 August 2011 3-3:30 pm G2G4.

{{AudioHMBGallBladder2011}}

==Gallbladder Structure==
===Anatomy===
* Pear-shaped
* distensible sac (about 50ml volume)
* Attached to posterioinferior surface of liver
* Embryonic - foregut, forms from primitive bile duct
* leads to cystic duct
** Liver -> hepatic duct
** Gallbladder -> cystic duct
** Common Bile duct

Macroscopic Mucosal features:
* Mucosa (epithelium + lamina propria)
** Mucosal folds
** Rokitansky-Aschoff sinuses
* Serosa/Adventitia (dense CT + visceral mesothelium)

===Epithelium===
* Columnar epithelium with microvilli (absorptive epithelium)
** Epithelium lining the biliary system does not contain mucus-producing cells (few located in neck of gall bladder)
* Basement membrane (not basal lamina which forms part of basement membrane and only visible by EM)

===Lamina Propria===
* connective tissue
* collagen fibers and fibroblasts
* fenestrated capillaries and venules
* lymphocytes and plasma cells

===Smooth Muscle Layer===

* random orientation of smooth muscle cells (fibers)
* '''muscularis propria''' (or fibromuscular coat)<ref><pubmed>21074688</pubmed></ref>
** not like the rest of GIT smooth muscle organisation, which is divided into muscularis mucosa (inside submucosa), muscularis externa (circular and longitudinal)
** various terminology used for this layer in different sources

===Serosa/Adventitia===
* Dense connective tissue layer covered with visceral mesothelium epithelial layer
** Adventitia - where it is attached to the liver
** Serosa - where it is free in the peritoneum
* Large blood vessels (arteries, veins)
* Obvious lymphatic vessels
* Autonomic nerve bundles
* Adipose tissue

==Gall Bladder Function==
* bile storage
* bile concentration
* bile release

==Histology Images==

===Development Histology===

===Adult Histology===

[[File:Gall bladder histology 001.jpg|400px]] [[File:Gall bladder histology 002.jpg|400px]]

[[File:Gall_bladder_histology_003.jpg|400px]] [[File:Gall_bladder_histology_004.jpg|400px]]

See also [[:File:Gall bladder histology 005.gif|Animated labeled image]]

==References==

<references/>

==Historic==
[[Embryology Historic Terminology]]
* '''Luschka ducts''' (duct of Luschka) is historic term referring to an accessory bile duct.

* '''folds of Heister''' (spiral valves of Heister) are undulating folds containing muscle fibers in the proximal mucosa of the cystic duct. First described by Heister in 1732. [https://www.ncbi.nlm.nih.gov/pubmed/15696536 PMID: 15696536]

==External Links==
{{External Links}}

* '''Blue Histology''' [http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Liver/liver.htm#LabGall Gallbladder]
* '''UNSW Virtual Slides''' Medicine phase 1 [http://vslides.unsw.edu.au/VirtualSlideV2.nsf/id/9F207C Health Maintenance B Hepatobiliary System 2 Practical] (requires login for access).
* '''UIOWA Virtual Slidebox of Histology''' [http://www.path.uiowa.edu/cgi-bin-pub/vs/fpx_browse.cgi?cat=o_liver&div=nlm Liver and biliary system]

{{Glossary}}
{{Footer}}

[[Category:Liver]] [[Category:Histology]] [[Category:Gallbladder]]

Gastrointestinal Tract - Gallbladder Histology - Revision history

Z8600021 at 04:56, 20 April 2019

Z8600021: Created page with "{{Header}} ==Introduction== Gallbladder transverse section historic drawing. This section of notes gives an overview mainly of adult {{gallbl..."