Perch Dissection Each checkpoint is counted as

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Presentation transcript:

Perch Dissection Each checkpoint is counted as equal parts of your lab grade: Checkpoint #1 – External Anatomy Checkpoint #2 – Internal Anatomy Checkpoint #3 – Internal Anatomy Continued Checkpoint #4 – Clean Up!

MAJOR duties of various TEAM Members!! Reader read lab procedures & specific organ system directions keep field guide, lab papers, and table dry & clean assist with reading of lab procedures & specific organ system directions assist with clean up of table and materials (soap, rinse, & thorough drying of tray & table - including sink) Clean Up assist with prep & organization of tags/labels assist with clean up of table and materials (soap, rinse, & thorough drying of dissecting kit instruments)

Preparation & Examination Place the fish in your dissecting tray CHECKPOINT #1 Use the following slide to help you identify the major external structures of your specimen and complete the labeling activity : External Anatomy on the worksheet provided.

Internal Dissection CHECKPOINT #2 Use the following slide to help you identify the major internal structures of your specimen and complete the labeling activity : Internal Anatomy on the worksheet provided. Cut along the blue line... Only cut through scales, muscles, & skin. Take special care not to cut too deep!

Anterior View CHECKPOINT #3 Use this slide and the next two slides to help identify the internal strutures of your specimen. Anterior View 1. Gills 2. Heart 3. Liver 4. Pyloric caeca 5. Small intestine 6. Stomach 7. Swim bladder

Posterior View 1. Swim bladder 2. Gonad 3. Large intestine 4. Urinary bladder 5. Anus

Close-up: Body Cavity Ovary Muscle Swim Bladder Eggs Liver Stomach Gastric Cecae Small Intestine Spleen

Can you identify the parts?

Perch Dissection COMPLETED! CHECKPOINT #4 CLEAN UP! Put the Perch in the garbage and wipe down the blue tray and your instruments with a damp paper towel Perch Dissection COMPLETED!