1 Hand Spasm and Hand symptoms and Movement symptoms (10 causes) 2  Hand Spasm and Hand symptoms and Muscle symptoms (10 causes) 3  Hand Spasm and Hand symptoms and Musculoskeletal symptoms (10 causes)  Hand Spasm and Hand symptoms and Nerve symptoms (10 causes)
The arms, tentacles, and ink are edible; the only parts of the squid that are not eaten are its beak and gladius (pen). 1  In Spain and Italy, squid or cuttlefish ink is eaten in dishes such as paella, risotto, soups and pasta.
Squid have three hearts. Two branchial hearts feed the gills, each surrounding the larger systemic heart that pumps blood around the body. Squid blood contains the copper-rich protein hemocyanin for transporting oxygen. The faintly greenish hearts are surrounded by the renal sacs â the main excretory system.