Diseases And Causes

- The sporozoites take time to multiply in the liver cells before infecting red blood cells, which delays the onset of symptoms.
- Symptoms like fever, chills, and sweating appear when the parasite ruptures red blood cells and releases toxins into the bloodstream.

- If the ovum is not fertilised, the corpus luteum degenerates, leading to a drop in progesterone levels.
- This drop causes the breakdown of the thickened uterine lining, resulting in its shedding as menstrual blood.

- Hormone: Estrogen.
- Source organ: Ovaries (developing follicles).
- Event: Estrogen helps repair and thicken the uterine lining (endometrium) that was shed during menstruation, preparing it for potential implantation.