Do you know that squids have three hearts? Well, there’s a lot of facts about squid anatomy that you’ll find, and when you’re studying about its anatomy, you’ll need anatomy of dissection diagrams that show the parts of the body and organs. This time we have a collection of squid diagrams for you to print.
The squid diagram above shows the internal organs of a squid. From the three hearts, two hearts feed each of the gills, and one larger heart that pumps blood to the rest of the body. The main body mass of a squid is enclosed in the mantle, which has a swimming fin along each side. These fins, unlike in other marine organisms, are not the main source of locomotion in most species. The following dissection diagram will show you more organs of a squid, including a giant one.
Under the body are openings to the mantle cavity, which contains the gills (ctenidia) and openings to the excretory and reproductive systems. At the front of the mantle cavity lies the siphon, which the squid uses for locomotion via precise jet propulsion. 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. A giant squid’s body may look pretty simple, it has two eyes, a beak, eight arms, two feeding tentacles, and a funnel (only much larger).
With these diagrams, we hope you find more information about the squid anatomy and dissection. Get more educational diagrams in our site by browsing through numerous categories!