Fish Dissection
Organs and Functions
1. anal fin - the fin on the lower side of the body near the tail
2. caudal fin - the tail fin 3. dorsal fin - the fin on the upper side of the body 4. gills - fleshy organs that are used for breathing - they are located on the side of the head 5. lateral line - a series of sensory pores (small openings) that are located along the sides of fish - they sense vibrations in the water 6. mouth - the part of the body which the fish uses to catch food - it is located at the front of the body 7. pectoral fin - paired of fins on either side of the body, near the head 8. pelvic fin - paired fins on the lower side of the body, near the head 9. Esophagus: connects the mouth to the stomach. 10. Dorsal aorta: blood from the heart to the organs. 11. Stomach: organ between the esophagus and the intestine. 12. Air bladder: pocket in which urine collects. 13. Spinal cord: part of the nervous system that connects the brain to all other parts of a fish. 14. Kidney: blood-purifying organ. 15. Urinary orifice: opening for eliminating urine. 16. Genital Orifice: opening related to the genital organs. 17. Anus: end of the digestive tract. 18. Gonad: hormone-secreting sexual gland of a fish. 19. Intestine: last part of the digestive tract. 20. Gall bladder: small sac containing the bile. 21. Liver: bile-producing digestive gland. 22. Heart: blood-pumping organ. 23. Gills: respiratory organ of a fish. 24. Tooth: hard organ of a fish used to shred food. 25. Olfactory bulb: bulging part of the smell organ of smell of a fish. |
Organ Diagram
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Comparing humans and fish
First of all, humans live on land and rely on the oxygen they breath in for air for cell activities and ultimately their survival. We are also mammals, warm-blooded and give birth to our young. Fish must live in water and use their gills to breath in the necessary oxygen. They also have scales, different types of fins, are cold-blooded, and lay eggs.