Nematodes

Question	Answer
Description (General)	Long cylindrical worms
Pinworm- Location	Reside in the large intestine
Pinworm- Reproduction	Sexual (unlike cestodes and trematodes)
Pinworm Life Cycle- Laying Eggs	Male impregnates female, who lays eggs around the anal region
Pinworm Life Cycle- Larva	Eggs contain larva, which develop over 4-6 hours
Pinworm Life Cycle- Ingestion	Eggs are ingested by humans, cycle starts again
Roundworm- Example	Ascaris lumbricoides
Roundworm- Location	Resides in S.I
Roundworm- Unfertile Eggs (Description)	Large, no visible nucleus
Roundworm- Fertilised Eggs (Description)	Compact nucleus
Roundworm Life Cycle- Egg Development	Develop in soil and are ingested by humans
Roundworm Life Cycle- To the Lungs!	Enter intestine and move through blood to the lungs
Roundworm Life Cycle- Coughing Up	The larvae are then coughed up, swallowed, and remain in the gut
Roundworm- Effect on blood	Can lead to high eosinophil count
Roundworm- Symptoms	Usually none, but large nematodes can block the gut
Hookworms- Example	Ancylotoma duodenae
Hookworm- Location	Small intestine
Hookworm- Symptoms	Iron deficient anaemia
Hookworm Life Cycle- Excretion	Brown, round eggs are excreted by human
Hookworm Life Cycle- Larva	Rhabitiform larva hatches
Hookworm Life Cycle- Penetration	Filantiform larva develops and penetrates the skin
Hookworm Life Cycle- To the Lungs!	Filantiform goes from liver to lungs
Hookworm Life Cycle- Coughing Up	Filantiforms are coughed up and swallowed till they reach the S.I.

Resource summary

	Created by gina_evans0312 about 10 years ago