Crayfish dissection lab instructions

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EXTERNAL ANATOMY. PROCEDURE AND OBSERVATIONS: A. Put on goggles, a lab apron and gloves. Place the crayfish in the dissecting tray with its top side up. Crayfish dissection: Using the dissection guide provided and teacher instruction, locate each of the structures listed. As you remove them, Use the diagram on the following two slides to fill in the blanks of your lab sheet. Dorsal View. Page 5. Ventral View. Page 6 This Crayfish Dissection Guide will help students identify anatomical structures and organs of the crayfish. Skills Practice Labs In this lab, you will observe the external structures of a crayfish and dissect PART 1: EXTERNAL ANATOMY OF A CRAYFISH. Crayfish Dissection Lab. Directions: and dorsal) before you start this dissection. You may use your photocopied diagram to help you locate the organs. Dissection Procedure. Carefully remove the carapace from the underlying organs. Use a probe to disconnect any muscle stuck to the carapace. As shown in the diagram below, the crayfish body is divided into two main parts: cephalothorax. abdomen. The cephalothorax consists of the cephalic (or headPlace a crayfish on its dorsal side in a dissection tray. Use the diagram below to locate the cephalothorax and the abdomen. The carapace, a shield of chitin,