External anatomy of a sea star. Phylum Echinodermata, Class Asteroidea.

Initial steps of the dissection process are also explained.

Part 2: Internal anatomy, can be found here:    • Sea Star Anatomy Part 2  

This video was made by the teaching assistant (C. Ernst) for the students of Organisms II at McGill University, but is appropriate for any introductorylevel zoology program.

Organisms II, 2012