Fetal Pig Dissection Introduction: Today, we begin a new chapter in ...
Fetal Pig Dissection Introduction: Today, we begin a new chapter in ...
Fetal Pig Dissection Introduction: Today, we begin a new chapter in ...
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i. ____ Mesentery: Th<strong>in</strong> membrane cover<strong>in</strong>g the organs. You cutthrough this when open<strong>in</strong>g the abdom<strong>in</strong>al cavity.ii. ____ Liver: Large reddish brown organ at the anterior end of theabdom<strong>in</strong>al cavity.iii. ____ Gall bladder: Gently lift the liver at the posterior end. Youwill see a greenish, or colorless, sac on the underside of the liver.This is where a digestive juice called bile is tored.iv. ____ Stomach: A bag-like structure best seen lift<strong>in</strong>g the liverfurther.v. ____ Pancreas: Lift the stomach from its posterior end. Thepancreas is a gray or yellowish mass that has the texture ofcauliflo<strong>we</strong>r. As a part of the digestive system, the pancreassecretes digestive enzymes like peps<strong>in</strong>. It also secretes a hormonecalled <strong>in</strong>sul<strong>in</strong>.vi. ____ Pyloric valve: A hard s<strong>we</strong>ll<strong>in</strong>g at the exit of the stomachwhere it connects to the small <strong>in</strong>test<strong>in</strong>e. Feel for this.vii. ____ Small <strong>in</strong>test<strong>in</strong>e: Light colored mass of tub<strong>in</strong>g lead<strong>in</strong>g directlyfrom pyloric valve; connects with large <strong>in</strong>test<strong>in</strong>e. Differentsections <strong>in</strong> order of flow are called: duodenum, jejunum, andileum.viii. ____ Large <strong>in</strong>test<strong>in</strong>e: Darker-colored sometimes green mass oftub<strong>in</strong>g found <strong>in</strong> the abdomen. Made of two parts.1. ____ Colon: First part of large <strong>in</strong>test<strong>in</strong>e, tightly coiled andgreen <strong>in</strong> color.2. ____ Rectum: Posterior part of large <strong>in</strong>test<strong>in</strong>e that leads tothe anal open<strong>in</strong>g. It is straight, not coiled. To see it, pushaside the colon.ix. ____ Caecum: A dead end pouch at the junction of the small andlarge <strong>in</strong>test<strong>in</strong>e. This organ is homologous to the appendix <strong>in</strong> yourbody. This can be very hard to f<strong>in</strong>d, try trac<strong>in</strong>g the path of thesmall <strong>in</strong>test<strong>in</strong>e until it reaches the large.