Respiratory System

A diagram showing the gills of a crayfish

Step 1
The gills are located on the outside of the body cavity in a space between the body wall and the carapace. Remove a segment of the carapace on one side of the crayfish to expose them.

A diagram showing a crayfish's walking leg

Step 2
Detach one of the walking legs, and note the small gill that is attached to the leg.

Next: Muscle System

Crayfish Dissection

  1. Setup for the Dissection
  2. External Anatomy
  3. Respiratory System
  4. Muscle System
  5. Nervous System
  6. Circulatory System
  7. Digestive and Excretory System
  8. Male Anatomy
  9. Female Anatomy
  10. Cleanup