Where will you look for the sporozoites of the malarial parasite?a)Sa...
Understanding the Malarial Parasite Lifecycle
The lifecycle of the malarial parasite, particularly Plasmodium species, involves two primary hosts: the female Anopheles mosquito and humans.
Where Are Sporozoites Found?
- Sporozoites are the infective form of the malaria parasite that is transmitted to humans through the bite of an infected female Anopheles mosquito.
- After the mosquito feeds on the blood of an infected person, the parasite undergoes several developmental stages in the mosquito's body.
Key Locations for Sporozoites:
- Salivary Glands of the Mosquito:
- The sporozoites migrate to the salivary glands of the female Anopheles mosquito after they mature.
- This is crucial because when the mosquito bites a human, the sporozoites are injected through the saliva into the bloodstream, initiating the infection.
- Saliva of the Mosquito:
- While the sporozoites are present in the saliva during the feeding process, they are not found in significant quantities there before the bite occurs.
Why Option B is Correct:
- The sporozoites are specifically located in the saliva of the infected female Anopheles mosquito at the moment of transmission to the human host.
- This is why option B is considered the correct answer. The other options refer to locations where sporozoites are not present: they are not in human blood cells, nor in the spleen, which deal with different stages of the parasite's lifecycle.
Conclusion
Understanding the lifecycle and transmission of malaria is crucial for prevention and control measures, especially recognizing the role of the Anopheles mosquito in the spread of the disease.
Where will you look for the sporozoites of the malarial parasite?a)Sa...
When a female Anopheles mosquito bites an infected person, Plasmodium enters the mosquito's body and undergoes further development. The parasites multiply within them to form sporozoites that are stored in their salivary glands. Sporozoites are the infective stage of malarial parasite.
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