Parasitology life cycle

the life cycle of a parasite

What stage is this?

In Inside of this stage you can see starch because of this it would be in a fecal smear.

What stage is this?

The life cycle of Malaria

Malaria is a parasite that gets in to the blood cells of a human. It is also a Protozoans.

life cycle of Protozoans

In this picture it shows a human getting the parasite from a kissing bug.

The parasite can re-infect the same type of host with offspring

Protozoan reproduction may be asexual or sexual

The two types or perform one or the other reproductive function in response to environmental conditions

Evolution of the parasitic flatworms (Neodermata) and the distribution of conspicuous biological traits characteristic of individual groups

The parasite requires some type of intermediate host (or hosts) for 1 or more stages

   of its life cycle.

Amoebas Life Cycle

Trematodes

Trematodes

Cestodes

1. Eggs are released from an adult tapeworm.

2. The larva (Oncosphere) develops in the egg

    casing.

3. The oncosphere hatches and penetrates a

    parenteral (Extraintestinal) site of the next

    host.

4. Metamorphosis occurs and the oncosphere

    becomes a juvenile Metacestode (often called

    a Cysticercus metacestode).

5. The metacestode develops into an Adult in the

    intestinal site of the same or  another host.

Cestodes

Nematodes

1. Eggs develop into First-Stage Juveniles

    which may or may not remain in the egg

    casing.

2. Juveniles continue to develop through

    Second, Third, and Fourth-Stages.

3. Fourth-stage juveniles develop into Adult in

    the host.

Nematodes

Nematodes

Arthropods

1. Egg develops into a Larva (sometimes called

    a Nymph).

2. Larva metamorphoses into the Adult.

3. In some groups, larva develop into a Pupa

    stage which undergo a complete

    metamorphosis.

Arthropods

What stage is this?

Cyst

What stage is this?

Egg

What stage is this?

Larvae

What stage is this?

Cysticercus

(pic only) What stage is this?

Microfilaria

What stage is this?

Encysted

What stage is this?

Cercariae

What stage is this?

Trypomastigote

(pic only) What stage is this?

Amastigotes

What stage is this?

Tachyzoites

What stage is this?

Egg