Morphology
Entamoeba histolytica is a parasite that has three stages: trophozoite, precyst, and cyst. Morphology of Entamoeba histolytica includes:
Trophozoites
Trophozoites are spherical or oval shaped and have a diameter of 15–20 µm. It is enclosed by thin cell membrane and contains a central endosome, peripheral chromatin, a single nucleus and radial achromatic fibrils. In the host it move towards the colon using finger-like pseudopods.
Cysts
Cyst are round or oval in shape, with a diameter of 12–15 µm. They are surrounded by a cyst wall, which is a highly retractile membrane that resists digestion by gastric juice in the human stomach. Cysts contain 1–4 nuclei, and young cysts usually have chromatoid bodies that appear as elongated bars with rounded ends.
Entamoeba histolytica Life Cycle
Entamoeba histolytica life cycle has two main stages, the trophozoite and the cyst stage. Infection begins with the ingestion of mature cysts, usually through contaminated food or water. Once inside the host’s intestine, the cysts release trophozoites, which can either colonize the intestinal lining, causing disease or transform back into cysts for excretion in feces, completing the cycle and facilitating transmission. In this article, we will study the life cycle of Entamoeba histolytica, the diseases caused by it, its symptoms, and treatment.
Table of Content
- Entamoeba histolytica Classification
- Entamoeba histolytica Life Cycle
- Entamoeba histolytica Life Cycle Diagram
- Stages of Entamoeba histolytica Life Cycle
- Morphology
- Entamoeba histolytica Characteristics
- Mode of Transmission
- Conclusion – Entamoeba histolytica Life Cycle
- FAQs -Entamoeba histolytica Life Cycle