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Endodermal origin – mucosis Splanchnic mesoderm – other layers Development of primitive gut liver pankreas Adventicie
Jícen = Esophagus Cubic + sqamous non- cornified epithelia, longitudinal folds Mucin glands Muscle - upper 2/3 striated muscle and lower 1/3 smooth muscle (try to find) Connective tissue on the surface PAS (Periodic acid–Schiff) - Stains mucin dark pink
Muscle Bazal lamina Cubic epithelia Squamous epithelia Lamina propria (Submucosis) Vessel Magn. x40 Adult
Embryonic esophagus E2111/5 8th week iud Magn. x5 Mucosis Adventicia Submucosis Muscle
Stomach = Žaludek Cylindric epithelia Plenty mucin and serous glands žlázky Epihtelia Lamina propria Muscle Magn. x5
Magn. x40 6th week iud stomach Embryo Mucosis Lamina propria Muscle Adventicia
Mucosis of villi Muscularis Mucosae Mucosis of crypt Lamina propria Muscle Adult Magn. x5 Cylindric epithelia Enterocytes, undifferentiated cells, goblet cells, paneth´s cells, endocrinne cells Small Intestine = Tenké střevo
Magn. x5 11th week of iud Mucosis Adventicia Muscle Submucosis Crypt Villi Embryo Proliferation of mucosis of primitive gut is followed by recanalisation
Lieberkuhn´s crypts Lamina propria Vessel Muscularis mucosae Submucosis Magn. x5 Large intestine = Tlusté střevo Adult Cylindric epithelia – short folds goblet cells
10,5th week iud Magn. x5 Embryo Mucosis Lamina Propria Muscle Adventicia
LAB Epithelium. Stratified squamous nonkeratinized epithelium underlying lamina properia (fine connective tissue ),(muscularis mucosa) thin longitudinal.
Small & Large Intestines Small Intestine: principal site for digestion of food and absorption of the products of digestion Large Intestine: reabsorption.
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DIGESTIVE. ESOPHAGUS Stratified squamous epithelium Submucosa The muscularis externa Esophageal glands.
DIGESTIVE SYSTEM 3 major components: 3 major components: 1.Oral cavity. 2.Alimentary canal. 3.Associated Glands: Salivary glands.Salivary glands. Liver.Liver.
Gastrointestinal tract II. Histology and embryology.
Digestive tract Department of Histology and Embryology.
Digestive System Department of Histology and Embryology Zhang Xi-Mei.
The histological structure of the intestine consist of four layers:- 1-Mucosa: Epithelium layers ( Simple columnar epithelium tissue ) Lamina propria (
Biology 106 Digestive system. Stomach Ileum Stomach T.S. of the stomach of rabbit The tube wall in General made up of 4 layers From the outer layer to.
Figure 1.1 Levels of Structural Organization Process Diagrams Step-by-Step Copyright © 2007 by John Wiley & Sons, Inc.
Biology 322 Human Anatomy I Digestive System. Functions:
Digestive system 1
The digestive system consists of: The digestive tract The associated glands which include: oral cavity pharynx esophagus stomach small and large intestines.
Large intestine It extends from the ileocecal orifice into the anus. It consists of the cecum, colon (ascending, transverse and descending), appendix rectum.
Structural characteristic of small intestine 4. small intestinal glands located in the lamina propria.
Unit 2 – Digestion Module Histology of the small and large intestine Safaa El Bialy (M.D, PhD) Ottawa University.
Gastro-intestinal system II Structure Lamina mucosa Epithelium (simple columnar or stratified squamous) Lamina propria (loose collagenous connective.
Histology Pre-lab. # 10 Intestines – Jejunum, Ileum, Colon & Appendix By Prof. Dr. Ansari ( MBBS semester I ) Thursday, September 03,
BIO132 Lab 6: Exercise 38 Digestive System Figure 38.1 in 8 th, 9 th & 11 th Figure 38.2 in 10 th edition.
BY DR. SOBIA IBRAHIM HISTOLOGY OF LARGE INTESTINE.
Histology of Digestive tract Dr Abubakr H Mossa MBBS, 27/11/2012.
Lecture 2 – Tubular GI Histology of the Esophagus, Stomach and Intestines Dr. Pillinger Lecture on Friday, 8/3/2012.
HISTOLOGY OF GASTROINTESTINAL TRACT Dr. Archana Rani Associate Professor Department of Anatomy KGMU UP, Lucknow
Digestive System Digestive Tract. Digestive System Digestive system Digestive Tract: Digestive glands: oral cavity, esophagus, stomach, small and large.
32409 Small intestine Large intestine Small intestine Intestine, liver, gall bladder, and pancreas.
GIT 1 By: Dr Hossam El-deen Salem. The subdivisions of the tongue are based on embryologic origins: Anterior two-thirds (body) posterior one-third (root)
The digestive tract is a long, continuous tube of varying diameter extending from the lips to the anus. It includes oral cavity,esophagus, stomach,
Digestivetract. Light C Dark C Taste pore Taste bud.
Digestive System. Development of the Digestive System What are the chief derivatives of the primitive gut? Name the embryonic germ layer that lines these.
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Slot 4.1: Submandibular (left) and sublingual (right) glands m = mucous, s = serous, x = mixed, d = duct Serous demilunesD = duct; F = adipose cells Mucous.
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