Printable squid diagram to show you the anatomy of a squid, along with the labeled parts provided in the diagrams. The anatomy of a squid is quite interesting, and the first thing you will notice is that its main body mass is enclosed in the mantle, which has a swimming fin along each side. Take a look at the following diagram for a closer look.
The skin is covered in chromatophores, which enable the squid to change color to suit its surroundings, making it practically invisible. In the squid diagrams, you can also see the gills (ctenidia) and openings to the excretory and reproductive systems. Inside the mantle cavity, beyond the siphon, lies the visceral mass, which is covered by a thin, membranous epidermis. Under this are all the major internal organs.
The head end bears eight arms and two tentacles, each a form of muscular hydrostat containing many suckers along the edge. Squids also have three hearts. They have two hearts which feed each of the gills, and one larger heart that pumps blood to the rest of the body. The head of a squid is different than anything else you have seen that lives in the water. It is much larger than the body.
Studying the anatomy of the squid will help you understand the parts of this animal and identify what makes them move and function as they do. From the diagrams above, you can learn many things about squid. You can save and print all of the sheets by clicking on the image of the diagram!