roundworms

What are the 3 vertebrate endoparasites we focused on?

intestinal roundworms, human hookworms, Trichina worms

What sticks out about Ecdysozoa clade?

They shed an exoskeleton (cuticle) periodically through molting.

What does the name 'Nematoda' (roundworms) mean?

Thread-like.

How widespread are nematodes in nature?

They are globally ubiquitous and found in virtually every ecological niche, most diverse parasite.

What is the scientific name for common intestinal roundworms (nematoda)?

Ascaris lumbricoides.

Which two species are responsible for human hookworm infections?

Ancylostoma duodenale and Necator americanus.

What historical public health program was used to combat hookworms in the SE US?

The construction of outhouses. Civilian public service in 1940's.

What condition is caused by Trichinella worms in human skeletal muscle?

Trichinosis.

Where do pinworms (Enterobius vermicularis) reside in the human body?

The lower gastrointestinal tract.

What disease is caused by filarial worms and results in severe swelling?

Elephantiasis.

What is a common domestic animal parasite caused by filarial worms?

Dog and cat heartworm.

What are Nematomorpha commonly called?

Horsehair worms.

What is the feeding behavior of adult Nematomorpha?

They are non-feeding.

What is the host for Nematomorpha larvae?

Arthropods.

What are Tardigrada commonly called?

Water bears.

Are Tardigrada rare or common?

They are globally ubiquitous.

Are nematodes typically endoparasites or ectoparasites in vertebrates?

Endoparasites.

Do most of the mentioned parasitic nematodes require one or several hosts?

Several hosts.

What is the primary habitat for adult Nematomorpha?

Soil or freshwater.

Which group of animals is known for being the most diverse lineage of animal parasites?

Nematoda (roundworms).