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.
Crayfish Dissection Â© John R. Sowash | May 2009 | Permission to redistribute granted. Crayfish External Anatomy. Crayfish (also known as crawdads, crawfish, mudbugs, or yabbies), are common throughout the world. There are. over 400 difference species of crayfish, 330 of which are native to the United States.