Helminths
macroscopic multicellular eukaryotic worms
Cestodes (Tapeworms)
flat, segmented intestinal parasites with hooks and suckers that
attach to host; burrow through intestines
Trematodes (Flukes)
flat, leaf shaped worms that effect the lungs, blood, liver and
intestine; two types: liver flukes and blood flukes
Liver flukes (trematodes)
from humans ingesting aquatic vegetation that can be acute or chronic
Blood flukes (trematodes)
major public health concern; can burrow in the skin and cause fatal
tissue damage
Nematodes (roundworms)
shed eggs into the intestine and is transmitted to humans from eating
egg contaminated food
Nematodes (Hookworms)
eggs hatch in warm soil and worms burrow through the skin, carry
through the blood to the heart, lungs and trachea where they are
swallowed again
Nematodes (Pinworm)
human hosts only; most common worm; mate in the colon and scratching
causes them to embed into your skin