PERCH REVIEW POWERPOINT EXTERNAL STRUCTURES 1 2 3










































- Slides: 42
PERCH REVIEW POWERPOINT
EXTERNAL STRUCTURES
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
1. maxilla 2. 3. 4. 5. 6. 7. 8. 9. 10.
1. maxilla 2. nares 3. 4. 5. 6. 7. 8. 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. 5. 6. 7. 8. 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. 6. 7. 8. 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. caudal fin 6. 7. 8. 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. caudal fin 6. anal fin 7. 8. 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. caudal fin 6. anal fin 7. pelvic fin 8. 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. caudal fin 6. anal fin 7. pelvic fin 8. pectoral fin 9. 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. caudal fin 6. anal fin 7. pelvic fin 8. pectoral fin 9. operculum 10.
1. maxilla 2. nares 3. dorsal fin 4. lateral line 5. caudal fin 6. anal fin 7. pelvic fin 8. pectoral fin 9. operculum 10. mandible
INTERNAL STRUCTURES
1. 2. 3. 4. 5. 6. 7. 8.
1. swim bladder 2. 3. 4. 5. 6. 7. 8.
1. swim bladder 2. gonad 3. 4. 5. 6. 7. 8.
1. swim bladder 2. gonad 3. intestine 4. 5. 6. 7. 8.
1. swim bladder 2. gonad 3. intestine 4. pyloric caeca 5. 6. 7. 8.
1. swim bladder 2. gonad 3. intestine 4. pyloric caeca 5. stomach 6. 7. 8.
1. swim bladder 2. gonad 3. intestine 4. pyloric caeca 5. stomach 6. liver 7. 8.
1. swim bladder 2. gonad 3. intestine 4. pyloric caeca 5. stomach 6. liver 7. heart 8.
1. swim bladder 2. gonad 3. intestine 4. pyloric caeca 5. stomach 6. liver 7. heart 8. gills
FUNCTIONS
WHAT STRUCTURE? Removes oxygen from the water
WHAT STRUCTURE? Removes oxygen from the water gills
WHAT STRUCTURE? Upper jaw
WHAT STRUCTURE? Upper jaw maxilla
WHAT STRUCTURE? Nostrils
WHAT STRUCTURE? Nostrils nares
WHAT STRUCTURE? Help with swimming, steering and maintenance of equilibrium
WHAT STRUCTURE? Help with swimming, steering and maintenance of equilibrium fins
WHAT STRUCTURE? Part of the digestive system – secretory or absorptive in function
WHAT STRUCTURE? Part of the digestive system – secretory or absorptive in function pyloric caeca
WHAT STRUCTURE? Series of water filled canals – detects movement and pressure changes in the water
WHAT STRUCTURE? Series of water filled canals – detects movement and pressure changes in the water lateral line
WHAT STRUCTURE? Lower jaw
WHAT STRUCTURE? Lower jaw mandible
WHAT STRUCTURE? Bony covering for the gills
WHAT STRUCTURE? Bony covering for the gills operculum
WHAT STRUCTURE? Filled with gases – allows the fish to remain buoyant at a specific depth
WHAT STRUCTURE? Filled with gases – allows the fish to remain buoyant at a specific depth swim bladder










































