FROG DISSECTION aa.psu/biology/frog/default.htm

1. FROG DISSECTIONhttp://www.aa.psu.edu/biology/frog/default.htm Purpose: The purpose of this lab activity is to help you learn the anatomy of a frog and give you a better understanding of the anatomy of vertebrate animals in general, including humans. After completing this dissection, you should be able to: 1.)Correctly identify the locations involved in the dissection procedures, and 2.)Correctly identify the locations of the major organs within the body cavity of a frog. Materials: Preserved frog Dissection Pan Dissection kit Scalpel Forceps Scissors Dissecting Pins Probes

2. I.) External Anatomya.) Eyes b.) Nictitating Membrane c.) Tympanum d.) External Nares e.) Appendages

3. II.) Moutha.) Internal Nares b.) Tongue c.) Eustachian Tube d.) Maxillary and Vomerine Teeth e.) Glottis f.) Esophagus

4. III.) Setup for the Dissectiona.) Pinning the Frog b.) Skin incisions c.) Muscle incisions

5. IV.) Respiratory System and Livera.) Vocal Cords b.) Lungs c.) Liver d.) Gallbladder

6. V.) Circulatory Systema.) Heart b.) Left Atrium c) Right Atrium d.) Ventricle

7. VI.) Digestive Systema.) Esophagus b.) Stomach c.) Small intestine d.) Cloaca e.) Anus f.) Pancreas g.) Spleen h.) Fat Bodies

8. VII.) Urogential Systema.) Kidneys b.) Urinary Bladder

9. VIII.) Male Anatomya.) Testes b.) Fat Bodies

10. IX.) Female Anatomya.) Ovaries b.) Oviducts

11. X.) Cleanupa.) Disposal of frog b.) Clean equipment • Dispose of all frog parts properly in the container marked Animal Waste.  • Do not leave any of the parts in the trash cans or sink. • 3. Rinse and dry all equipment used, including the dissecting pan.