- Jaejeong & Jaeah Kim
Crayfish Dissection || Aw Snap!
Curious about crayfish anatomy? Learn how to dissect a crayfish in this video, which also covers its external and internal anatomy and physiology. In this simple dissection of a crayfish, you’ll learn various parts of the arthropod anatomy, why crayfish have holes in their hearts, and which group of animals dominates the earth.
Crayfish are a great way to learn about arthropod anatomy. Their characteristic hard exoskeleton and jointed appendages of arthropods is fascinating to learn! Also, did you know that crayfish have teeth in their stomach? In this video, you’ll learn general information about crayfish, which will be tied into its anatomical structures.
This dissection lab is for anyone who is curious about crayfish anatomy, wants to cover crayfish anatomy for a zoology course, missed the crayfish dissection during biology class, or just wondered, “Crayfish are tasty, but how do they work?”. The video will teach you how to dissect a crayfish step by step, and review the external and internal anatomy of the crayfish.
In this video, we’ll cover the following structures:
Jointed appendages Mandibles
Tagmata Posterior and anterior gastric muscles
Cephalothorax Mandibular muscles
Abdomen Abdominal flexor and extensor muscles
Chelipeds Reproductive organs
Copulatory swimmerets Ostia
Mouth Digestive glands
Anus Cardiac and pyloric stomach
Tail Gastric mills
Uropods Nerve cord
Antennae Antennal glands
If you want to learn more about crayfish anatomy, here’s a link to a website with more detailed information, as well as diagrams: https://altoona.psu.edu/academics/bac...
If you have any questions regarding crayfish anatomy, dissection methodology, or general biology, feel free to leave a comment. We'll try our best to reply.