RM
Parasitic nematode worm
Ascaris lumbricoides parasitic nematode worm on a gloved hand. This nematode is a parasite of the human small intestine. Fertile eggs are passed in the faeces. When swallowed, the larvae hatch from the eggs, invade the intestinal mucosa, and are carried in the blood to the lungs. The larvae mature in the lungs, then ascend the bronchial tree to reach the throat. There, they are swallowed. Upon reaching the small intestine, they develop into adult worms, completing the life cycle., by CLOUDS HILL IMAGING LTD/SCIENCE PHOTO LIBRARY
More
Top Categories