Ключевые слова: anatomy, animal, ascarid, ascaris, black, cat, child, coccidia, colon, color, dog, earthworm, female, flea, food, gastro, giardia, he helminth, heart, helminth, hookworm, human, icons, illustrations, internal, intestinal, intestine, item, lice, male, monster, mosquito, nematode, pack, pain, parasite, parasitology, pet, physiology, pinworm, roundworm, schistosomiasis, set, sign, symbol, tapeworm, whipworm, worm,