An Tech II: Endoparasite General Info.

What is the collective name for roundworms?

Nematodes.

What kind of host is a host that harbors the larval, juvenile, immature, or asexual stage of a parasite, and is a vital part of the parasite’s life cycle?

Intermediate.

What kind of host is a host that harbors the adult, sexual, or mature stage of the parasite?

Definitive.

What kind of host is not vital to the parasite’s life, that the parasite is accidentally picked up?

Paratenic.

Which type of migration is this?

1. larvae hatches in small intestine.

2. Enter the bloodstream.

3. Migrate thru the liver to the lungs.

4. Larvae are coughed up and swallowed, returning to the small intestine to mature.

Tracheal.

Which type of migration is this?

1. Larvae hatch in small intestine.

2. Enter the bloodstream.

3. Carried to somatic cites (muscles, kidney, mammary glands).

4. Become suspended.

Somatic.

Which migration occurs in dogs younger than 3 months?

Tracheal.

Which migration occurs in dogs older than 3 months?

Somatic.

What are some examples of paratenic hosts?

All of the above.

Which route of transmission ensures infection at birth (through the placenta)?

Transplacental.

Which route of transmission is where infection is acquired while nursing (passes by way of milk)?

Transmammary.

What is the most common treatment for roundworms?

Antihelminitcs.