取较大的跳蚤(或体虱)一只。取与跳蚤虫体厚度相当的纸板一块,用剪刀将纸板剪成与盖玻片大小一致的纸块,用小尖刀在纸块中央刻一个与虫体侧面大小一致的孔,将纸块放在载玻片上。然后将跳蚤放在纸块孔内,及时盖上盖玻片,制成装片。将装片放在显微镜下,用低倍镜就能清楚地看到消化管有规律地蠕动和液体食物被推进的过程。 Take a larger flea (body lice) one. Take a piece of paperboard with the same thickness as the flea body, use a pair of scissors to cut the paperboard into a piece of paper with the same size as the cover glass. Use a small knife to make a hole in the center of the piece with the same size as the side of the worm body, On the slide. Then the flea on the paper hole, cover the glass slides in time, made into pieces. The loading piece on the microscope, with a low magnification can clearly see the digestive tract regularly peristalsis and liquid food is advancing process.