Which of the following is affected by the infection of Wuchereria bancrofti?

Explanation

Infection causes filarial fever which is characterised by headache, mental depression and increase in the body temperature. In general the infection of filarial worm causes inflammation effect in lymph vessels and lymph glands. Inflammation in the lymph vessels is called lymphangitis and that of lymph glands is called lymphadenitis. In the case of heavy infection, the accumulation of dead worms blocks the lymph vessels and lymph glands resultings in immense swelling of limbs, scrotum of males and mammary glands in females. Fibroblasts accumulate in these tissue and form the fibrous tissue. In severe case, the sweat glands of the skin in the affected region disingtegrate and the skin becomes rough. This terminal condition is called elephantiasis.