What is the squids body system?

It's 'jet propulsion' is from a body part called a giant axon. Squids have a very strong stomach and a digestive system that is not at all simple. They have one main intestine...
In the more mature part of their lives, the digestive system's organs often shrivel up to leave room for the reproductive system in their bodies.
Squids possess a rectum, where they, basically, go to the bathroom.
The squid have two branchial hearts and one normal heart that moves the blood. The branchial hearts feed the gills, and the normal heart is surrounded by the other two.
The normal heart has two auricles, higher up, and one ventricle, lower down.
Squid actually don't have 10 tentacles. They have 2, and 8 arms, all of which would not grow back if you cut them off.
That is your basic squid. Good bye.