In nasogastric (NG) intubation, a tube is placed through your nose into your stomach. Your healthcare provider can use an NG tube to feed you and give you medicine. They can also apply suction to an NG tube to remove stomach contents.
Crayfish, also called crawfish or crawdad, any of numerous crustaceans (order Decapoda, phylum Arthropoda) constituting the families Astacidae (Northern Hemisphere), Parastacidae, and Austroastracidae (Southern Hemisphere). They are closely related to the lobster.
Generally, cuttlefish are a group of marine animals and squids represent as a part of that group. This article would be a great help for anyone with uncertainty about these two, as it clearly distinguishes the difference between them.