BIO 139 ANATOMY AND PHYSIOLOGY II THE DIGESTIVE SYSTEM LAB ANALOGY PAGES 248-265 MARY CATHERINE FLATH, Ph.D.
DIGESTIVE ORGANS ALIMENTARY CANAL MOUTH PHARYNX ESOPHAGUS STOMACH SMALL INTESTINE LARGE INTESTINE Copyright 2015 Dr. Mary Cat Flath ACCESSORY ORGANS SALIVARY GLANDS PANCREAS LIVER GALLBLADDER
THE DIGESTIVE SYSTEM FUNCTION BREAKDOWN FOOD INTO SUBSTANCES THAT CAN BE ABSORBED (FOR CELLULAR RESPRIATION = ENERGY) Copyright 2015 Dr. Mary Cat Flath
ALIMENTARY CANAL FROM MOUTH TO ANUS CHARACTERISTIC WALL STRUCTURE SPHINCTER MUSCLES BETWEEN ORGANS MOVEMENT OF FOOD BY PERISTALSIS
ALIMENTARY WALL STRUCTURE MUCOSA SUBMUCOSA MUSCULARIS SEROSA Copyright 2015 Dr. Mary Cat Flath
SPHINCTER MUSCLES PREVENT REGURGITATION OF FOOD GASTROESOPHAGEAL SPHINCTER PYLORIC SPHINCTER ILEOCECAL VALVE ANAL SPHINCTERS INTERNAL EXTERNAL Copyright 2015 Dr. Mary Cat Flath
MOVEMENTS THROUGH THE ALIMENTARY CANAL MIXING PERISTALSIS
ORGANS OF THE ALIMENTARY CANAL
THE MOUTH SITE OF MECHANICAL DIGESTION; THE FIRST SITE OF CARBOHYDRATE DIGESTON: SALIVARY AMYLASE
SALIVARY GLANDS SECRETE SALIVA, A WATERY FLUID CONTAINING SALIVARY AMYLASE INTO FOOD IN MOUTH; SALIVARY AMYLASE CHEMICALLY BREAKS POLYSACCHARIDES (GLYCOGEN AND STARCH) INTO DISACCHARIDES
THE PHARYNX The throat: Common passageway for food (digestive system) and air (respiratory system)
DEGLUTITION Copyright 2015 Dr. Mary Cat Flath
THE ESOPHAGUS CARRIES THE SWALLOWED BOLUS OF FOOD TO THE STOMACH THROUGH PERISTALSIS
Take a few minutes and perform the deglutition exercise SEPARATE HANDOUT
THE STOMACH THE FIRST SITE OF CHEMICAL DIGESTION OF PROTEINS THROUGH THE ENZYME PEPSIN, WHICH BREAKS PROTEINS INTO PEPTIDES.
SEM of Gastric Pit with gastric glands secreting pepsin and HCl Copyright 2015 Dr. Mary Cat Flath
* Copyright 2015 Dr. Mary Cat Flath
THE PANCREAS SECRETES PANCREATIC JUICE CONTAINING AMYLASE, PROTEINASES, LIPASES, AND NUCLEASES INTO DUODENUM; THESE ENZYMES BREAK DOWN EACH OF THE MACROMOLECULES WE INGEST
Take a look at the pancreas Slide: The portions other than the Islets are digestive. Copyright 2015 Dr. Mary Cat Flath
D U O D E N U M PANCREAS Copyright 2015 Dr. Mary Cat Flath
THE LIVER PRODUCES BILE WHICH EMULSIFIES FATS IN THE DUODENUM
BILE EMULSIFIES FAT INCREASES ITS SURFACE AREA FOR MORE EFFECTIVE DIGESTION BY LIPASES
Liver Histology: Hepatic Lobule = take a look at the liver slide Copyright 2015 Dr. Mary Cat Flath
THE GALLBLADDER STORES BILE (PRODUCED IN LIVER) BETWEEN MEALS; BILE IS DEPOSITED BILE INTO THE DUODENUM
THE SMALL INTESTINE SITE OF COMPLETION OF DIGESTION (DUODENUM; LACTASE, SUCRASE, MALTASE, DUODENAL PEPTIDASES; LIPASES) SITE OF ABSORPTION OF SIMPLE NUTRIENTS (JEJUNUM & ILEUM)
THE SMALL INTESTINE IS SUSPENDED IN THE ABDOMINAL CAVITY BY MESENTERY
INTESTINAL MUCOSA LINING IS SIMPLE COLUMNAR EPITHELIUM WITH GOBLET CELLS AND MICROVILLI INTESTINAL VILLI ARE LINED BY INTESTINAL GLANDS INTESTINAL VILLI HAVE A LACTEAL IN THEIR CORE Copyright 2015 Dr. Mary Cat Flath
LM OF INTESTINAL VILLI
ULTRASTRUCTURE OF SMALL INTESTINE Copyright 2015 Dr. Mary Cat Flath
A LACTEAL Copyright 2015 Dr. Mary Cat Flath
Intestinal Wall Model: Note Lacteals Copyright 2015 Dr. Mary Cat Flath
LAB LIGHT MICROGRAPHS OF THE SMALL INTESTINE OBTAIN SIMPLE COLUMNAR ET OR DUODENUM SLIDE
SIMPLE COLUMNAR ET: DUODENUM~LOW POWER~ INTESTINAL VILLI Copyright 2015 Dr. Mary Cat Flath
SIMPLE COLUMNAR ET: DUODENUM~HIGH POWER~ SIMPLE COLUMNAR ET Copyright 2015 Dr. Mary Cat Flath
SIMPLE COLUMNAR ET: DUODENUM ~OIL IMMERSION~ GOBLET CELLS IN SIMPLE COLUMNAR ET Copyright 2015 Dr. Mary Cat Flath
THE LARGE INTESTINE SITE OF REABSORPTION OF WATER FROM CHYME
LM OF LARGE INTESTINE
The Large Intestine Copyright 2015 Dr. Mary Cat Flath
Digestive Fetal Pig Dissection Mouth Cavity tongue, teeth, hard palate, soft palate, pharynx, epiglottis, probe into glottis larynx/trachea, and probe into pharynx esophagus Thoracic Cavity - esophagus Abdominopelvic Cavity liver, gallbladder, stomach with rugae & pyloric sphincter, spleen, pancreas, small intestine with mesentery, spiral colon/large intestine, cecum, rectum, anus Copyright 2015 Dr. Mary Cat Flath
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Thyroid gland Larynx Trachea Thymus gland Heart Liver Small Intestine Urinary (allantoic) Bladder Copyright 2015 Dr. Mary Cat Flath Lungs Diaphragm Spleen Large Intestine - (Spiral Colon) Umbilical Arteries
External Nares Hard Palate Soft Palate Opening into Nasopharynx Epiglottis Tongue Copyright 2015 Dr. Mary Cat Flath
PRACTICE LAB DIGESTIVE QUIZ
SIMPLE COLUMNAR ET: DUODENUM~HIGH POWER~ SIMPLE COLUMNAR ET Copyright 2015 Dr. Mary Cat Flath
NAME THE SCIENTIFIC TERM FOR SWALLOWING Copyright 2015 Dr. Mary Cat Flath
DEGLUTITION Copyright 2015 Dr. Mary Cat Flath
A LACTEAL Copyright 2015 Dr. Mary Cat Flath
Name the structure. Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright 2007 Pearson Education, Inc., publishing as Benjamin Cummings.
Green Lacteals Copyright 2015 Dr. Mary Cat Flath
D U O D E N U M PANCREAS Copyright 2015 Dr. Mary Cat Flath
Take a look at the pancreas slide Copyright 2015 Dr. Mary Cat Flath
pancreas Copyright 2015 Dr. Mary Cat Flath
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Name the organ. Copyright 2015 Dr. Mary Cat Flath
Green: Gallbladder; White: Stomach; Red: Spleen Copyright 2015 Dr. Mary Cat Flath
Name the organ Copyright 2015 Dr. Mary Cat Flath
White: pancreas Copyright 2015 Dr. Mary Cat Flath
Name the organ or structure. Copyright 2015 Dr. Mary Cat Flath
Yellow: Right Lung; Black: Diaphragm; Green: Liver. Copyright 2015 Dr. Mary Cat Flath
Name the structure(s) Copyright 2015 Dr. Mary Cat Flath
Rectum down back wall; Female with Ovaries and Uterine Horns Copyright 2015 Dr. Mary Cat Flath
Name the organ. Copyright 2015 Dr. Mary Cat Flath
Green: Liver; Red: Small Intestines with Mesenteries Copyright 2015 Dr. Mary Cat Flath
Name the organ. Copyright 2015 Dr. Mary Cat Flath
Rectum. Copyright 2015 Dr. Mary Cat Flath
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Good luck studying Copyright 2015 Dr. Mary Cat Flath