Renin, a hormone produced by the juxtaglomerular apparatus in the kidneys, converts angiotensinogen (which is made in the liver) to angiotensin I. Angiotensin I is then converted to angiotensin II by the angiotensin converting enzyme (ACE), increasing blood pressure by causing vasoconstriction of the blood vessels.
Malaria is caused by the plasmodium parasite. The parasite can be spread to humans through the bites of infected mosquitoes. There are many different types of plasmodium parasite, but only five types cause malaria in humans.These are:1  Plasmodium falciparum â mainly found in Africa, it is the most common type of malaria parasite and is responsible for most malaria deaths worldwide. 2  Plasmodium vivax â mainly found in Asia and South America.he parasite can be spread to humans through the bites of infected mosquitoes. There are many different types of plasmodium parasite, but only five types cause malaria in humans. These are:
Four kinds of malaria parasites infect humans: Plasmodium falciparum, P. vivax, P. ovale, and P. malariae. In addition, P. knowlesi, a type of malaria that naturally infects macaques in Southeast Asia, also infects humans, causing malaria that is transmitted from animal to human (zoonotic malaria).our kinds of malaria parasites infect humans: Plasmodium falciparum, P. vivax, P. ovale, and P. malariae. In addition, P. knowlesi, a type of malaria that naturally infects macaques in Southeast Asia, also infects humans, causing malaria that is transmitted from animal to human (zoonotic malaria).