Dissection Lab “Walk through”

Questions??? 1. What are the main characteristics of a mollusk? Invertebrates, soft unsegmented bodies often covered in a shell; have thin layer of tissue called a mantle that covers their internal organs and an foot (tentacles); open circulatory system, gills,

Dissection Safety Guidelines

Why Do We Dissect? To view and compare the internal and external structure of different organisms to each other and ourselves

Rule #1 Listen for directions and respond immediately so you don’t miss instructions!!

Absolutely NO HORSEPLAY!! Rule #2 Absolutely NO HORSEPLAY!!

Work at your lab station only. Don’t interfere!! Rule #3 Work at your lab station only. Don’t interfere!!

Wear goggles and gloves! Rule #4 Wear goggles and gloves!

Rule #5 Always keep your hands away from your face, eyes mouth and other people

Let your teacher know if you are not feeling well!! Rule #6 Let your teacher know if you are not feeling well!!

Handle your specimen and tools with extreme care! Rule #7 Handle your specimen and tools with extreme care!

Dispose of all specimen parts in the designated trash area only!!! Rule #8 Dispose of all specimen parts in the designated trash area only!!!

Rule #9 Clean up your area and return all equipment to proper place. Wash tables!!

Wash your hands thoroughly with soap and water when you finish Rule #10 Wash your hands thoroughly with soap and water when you finish

Dissection Part 1& 2 Squid Dissection

Pre-lab Discussion Completed

Dissection Lab Worksheet

External Anatomy

Analysis

Internal Anatomy

Guess What I get to do????

Observation and Analysis

What’s it look like??

Mouth Arms tentacles Eyes Mantle Siphon Chromatophores Fins

Esophagus Ink Sac Anus Gills Intestine Gill Heart Gonads Systemic Heart

Questions??? In your notebook check to see if you can add to your earlier answer: 1. List the main characteristics of a mollusk 2. What characteristics are unique to the octopus and squid?

Safety On the card write one safety rule or tip you will remember for the lab tomorrow??

Anthology of Deep-Sea Squids http://youtu.be/Nn-BkBcbqhA