1. Frog Dissection Guide

2. Amphibians Phylum: Chordata Class: Amphibians (Means: double-life)
Orders: Salamanders and Newts, Frogs and Toads, Ringed Caecilian
Water as larvae and land as adults
Breathing: Gills and skin larvae
: Lungs and skin adults

3. Caeceilians

4. Reproduction Requires Moist Environment
Eggs must develop in water (not-amniotic)

5. Countershading

6. Nictitating Membrane

7. Tympanic Membrane/tympanum

8. Breathing/Respiration: Skin and Lungs

9. Tadpole Breathing

10. Anatomy of Frog’s Mouth

11. Answer Key External Anatomy

12. Dissection Directions
Read the directions to cut open the Frog
Pin the frog for optimal viewing

13. Fat Bodies

14. Frog Liver Right lobe, left anterior lobe, and left posterior

15. Frog Heart

16. Gall Bladder Lungs, Stomach, Pancreas

17. Internal Anatomy Slide 2

18. Liver, Peritoneum, Fat Bodies and Heart

19. Male Urogenital System

21. Female Urogenital System

22. Female With Eggs

23. Answer Key

24. Male Urogenital Answer Key

25. Urogenital System Kidneys (D): Filter Blood
Ureters (G): Carry urine from kidneys to bladder
Testes (C): Make sperm
Oviducts (B): eggs travel through these
Ovary: makes eggs (A) - ovary is often too small to see, but eggs are visible
Urinary Bladder (F): Stores Urine
Cloaca (E): Where sperm, eggs, urine, and feces exit.