PigLab - Biology 2108 Laboratory Exercises: Variation in...

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1 Biology 2108 Laboratory Exercises: Variation in Natural Systems Ed Bostick Don Davis Marcus C. Davis Joe Dirnberger Bill Ensign Ben Golden Lynelle Golden Paula Jackson Ron Matson R.C. Paul Pam Rhyne Gail Schiffer Heather Sutton Kennesaw State University Department of Biology and Physics LABORATORY 5 Anatomy: Fetal Pig Dissection
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2 OVERVIEW OF LAB Like cells and ecosystems, organisms are units composed of many parts that interact and function together. The organism as a whole is composed of organ systems, such as the nervous system, and the circulatory system. Organ systems are composed of organs (such as the brain and the heart), and these, in turn, are made up of tissues. The small intestine, for example, is made up of epithelial, connective, and muscle tissues arranged in concentric circles. In this lab, you will dissect a fetal pig, examining the general anatomy of a vertebrate. In addition to the dissection, you will look up the functions of specific organs in order to understand how they work with one another. Learning skills is an important component of most lab courses. So far, for example, you have had practice in designing experiments, taking accurate measurements, and using statistics. In this lab you will learn how to dissect and how to use a microscope. Carefully read and follow the directions given. You will receive two grades for this lab. The first will be an evaluation of your dissection based on the thoroughness and correctness of your work. The second will be your score on a lab practical. REMEMBER: You will be denied access to the laboratory if you are not appropriately dressed. Shorts, short skirts and open-toed shoes are not allowed. You must wear safety glasses and gloves (provided in lab). Students may wish to purchase their own gloves and dissecting tools. Safety glasses will be provided. DISSECTION OF THE FETAL PIG Dissection Tools scissors, forceps, blunt probe. The following is a list of structures which you must locate. You are also responsible for the function of structures with an asterisk. These functions can be found in your text and in the supplemental laboratory manuals in the lab. Structure Function or Special Features A. External Anatomy head neck trunk appendages tail mouth lips cheeks external nares eyes eyelids auricle external acoustic meatus thorax abdomen umbilical cord prepuce orifice scrotum anus labia genital papillae vulva mammary papillae hooves wrist ankle elbow knee
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Structure Function or Special Features B. Internal Anatomy Digestive and Respiratory Systems masseter parotid gland epiglottis* teeth tongue papillae of tongue hard palate soft palate oral cavity nares (nasal cavities) nasal septum pharynx larynx* thymus* vocal cords trachea glottis thyroid* esophagus diaphragm* coelom pleural cavities lungs* pericardial sac parietal pleura visceral pleura parietal pericardium visceral pericardium visceral peritoneum mesenteries liver* umbilical vein* umbilical arteries* gall baldder*
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This note was uploaded on 04/03/2010 for the course BIOL 2108 taught by Professor Davis during the Spring '08 term at Kennesaw.

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PigLab - Biology 2108 Laboratory Exercises: Variation in...

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