L4

Haemoflagellates: Leishmania & Trypanosoma
Blood and Tissue Protozoal Infections
The major protozoal diseases that involve the blood and internal organs are malaria (Plasmodium species), toxoplasmosis (Toxoplasma species), trypanosomiasis (Trypanosoma species), and leishmaniasis (Leishmania species). Plasmodium and Toxoplasma are sporozoans, whereas Trypanosoma and Leishmania are flagellates, sometimes referred to as hemoflagellates. These parasites are unicellular with flagellum in the beginning of the parasite which helping it in motile.
1.These parasites invading the blood, tissues,& endothelial layer of organs&the tissues of skin.
2.These flagellates including two genus that important to human

Trichomonas vaginalis
1. Pathogenic to human &causes vaginitis (trichomoniasis).
2. troph. Is round or pear like in shape, contains 4-6 flagella, all originating from anterior end & only one extend posteriorly. The motility is rapid & jerky. No cyst is seen
3. The undulating membrane extending half of the body length. Prominent axostyle that often curves around the nucleus & granules may be seen along in the axostyle. The nucleus is oval shape & only one.