Ключевые слова: abdomen, animal, arthropoda, biological, biology, bite, blood, bright, danger, dangerous, disease, head, high, human, humanus, infection, insect, isolated, leg, lice, louse, magnification, microscope, microscopy, mouth, museum, parasite, parts, pediculus, penetration, permanent, phthiraptera, plate, research, slide, stain, study, sucking, university, yellow,