LAB 10          THE DIGESTIVE TRACT

 

I.         Histology

            1.         Fundic stomach - note gastric pits between the rugae. 

                        Identify the   gastric glands

 

            2.         Jejunum - note villi and layers indicated on model

           

            3.         Liver - note liver laminae and sinusoids

 

            4.         Pancreas - note Isles of Langerhans among the pancreatic acini

 

II.        Skeletal Material - None

 

III.      Models

            A.        Stomach

                        1.         Cardiac orifice

                        2.         Fundus of the stomach

                        3.         Lesser curvature

                        4.         Greater curvature

                        5.         Pylorus

                        6.         Layer of muscular tissue

                        7.         Longitudinal muscular fibers

                        8.         Circular muscular fibers

                        9.         Oblique muscular fibers

                      10.         Peritonium

                      11.         Left gastric artery

                      12.         Right gastric artery

                      13.         Left gastro-epiploic artery

                      14.         Right gastro-epiploic artery

                      15.         Left vagus nerve

                      16.         Right vagus nerve

                      17.         Gastric mucous membrane

                      18.         Gastric folds

                      19.         Submucous tunica

                      20.         Section through a fundus gland microscopically enlarged

 

            B.        Pancreas with Spleen and part of the Duodenum

                        A.        Pancreas

                        B.         Spleen

                        C.        Duodenum

                        1.         Duct of Wirsung (Pancreatic duct)

                        2.         Duct of Santorini (Accessory pancreatic duct)

                        3.         Common bile duct

                        4.         Longitudinal fold of the duodenum

                        5.         Portal vein

                        6.         Splenic vein

                        7.         Superior mesenteric vein

                        8.         Celiac artery

                        9.         Hepatic artery

                      10.         Splenic artery

                      11.         Right gastric artery

                      12.         Right Gastroduodenal artery

                      13.         Superior mesenteric artery

                      14.         Inferior and superior pancreaticoduodenal artery

 

            C.        Human Intestine Model

                        Mucosa

                        1.         Villus

                        2.         Core of villus

                        3.         Capillary network

                        4.         Central lacteal

                        5.         Lymphatic capillary

                        6.         Solitary lymph nodule

                        7.         Crypt of Lieberkuhn

                        8.         Mucosal muscle

                        Submucosa

                        9.         Fat cells

                      10.         Areolar connective tissue

                      11.         Lymph vessel

                      12.         Arteriole

                      13.         Venule

                      14.         Nerve plexus of Meissner

                        Muscularis

                      15.         Circular muscle

                      16.         Myentereic nerve plexus

                      17.         Intermuscular lymph plexus

                      18.         Longitudinal muscle

                      19.         Serosa with fat

 

            D.        Torso Models  -  Locate the following

                        1.         Esophagus

                        2.         Stomach

                                                cardiac region

                                                fundus

                                                serosa

                                                longitudinal muscularis

                                                circular musclaris

                                                oblique muscularis

                                                greater curvature

                                                lesser curvature

                        3.         Small intestine

                                                plicae circulares

                        4.         Spleen

                        5.         Pancreas

                        6.         Arteries, Veins

                                                splenic artery and vein

                                                celiac trunk

                                                inferior vena cava

                                                superior mesenteric artery, vein

                                                portal vein

                        7.         Large intestine

                                                cecum

                                                appendix

                                                iloceal junction (valve)

                                                ascending colon

                                                transverse colon

                                                descending colon

                                                taenia coli

                                                sigmoid colon

                                                rectum

                                                anal canal

                        8.         Liver

                                                left lobe

                                                right lobe

                                                caudate lobe

                                                quadrate lobe

                                                inferior vena cava

                                                gall bladder

                                                hepatic portal vein

                                                hepetic artery

                                                hepatic duct

                                                cystic duct

                                                round ligament

                                                common bile duct

 

IV.      Dissection

 

            A.        Anterior Abdominal Structures (review Lab 5, IV., B.)

                      312.       Transversus Abdominis

                      313.       Rectus Abdominis

                      314.       Linea Semilunaris

                      315.       Arcuate Line

                      316.       Liver

                      317.       Falciform Ligament

                      318.       Ligamentum Teres

                      319.       Stomach

                      320.       Transverse Colon

                      321.       Greater Omentum

                      322.       Small Intestine

                      323.       Inguinal Ligament

                      324.       Mons Pubis

                      325.       Male-Spermatic cord   Female-round ligament

 

            B.        Digestive Tract

                      326.       Esophagus

                      327.       Fundus

                      328.       Greater Curvature

                      329.       Lesser Curvature

                      330.       Body of Stomach

                      331.       Pyloric Region

                      332.       Duodenum

                      333.       Aorta

                      334.       Celiac Trunk

                      335.       L. Gastric A.

                      336.       Splenic A.

                      337.       L. Gastroepiploic A.

                      338.       Common Hepatic A.

                      339.       R. Gastric A.

                      340.       Gastroduodenal A.

                      341.       R. Gastroepiploic A.

                      342.       Sup. Pancreaticoduodenal A.

                      343.       Hepatic A.

                      344.       Pancreas

                      345.       Pancreatic Duct

                      346.       Spleen

                      347.       Portal V.

                      348.       Sup. Mesenteric V.

                      349.       Splenic V.

                      350.       Inf. Mesenteric V.

                      351.       Sup. Mesenteric A.

                      352.       Inf. Pancreaticoduodenal A.

                      353.       Inf. Vena Cava

                      354.       Common Bile Duct

           

            C.        Intestines

                     355.        Mesentery

                     356.        Jejunum

                     357.        Plica Circulares

                     358.        Ileum

                     359.        Ileocaecal Junction

                     360.        Caecum

                     361.        Appendix

                     362.        Ascending Colon

                     363.        Transverse Colon

                     364.        Taenia Coli

                     365.        Appendices Epiploicae

                     366.        Descending Colon

                     367.        Sigmoid Colon

 

            D.        Liver

                     368.        Left Lobe

                     369.        Right Lobe

                     370.        Caudate Lobe

                     371.        Quadrate Lobe

                     372.        Gall Bladder

                     373.        Inferior Vena Cava

                     374.        Portal V.

                     375.        Hepatic A.

                     376.        Common Bile Duct

                    

                     377.        Lesser Omentum             

                     378.        L. Triangular Lig.

                     379.        Coronary Lig.

                     380.        R. Triangular Lig.

                     381.        Bare Area

 

V.        Audio-Visual-none