Your immune system is one of the most important parts in protecting you from illness-causing germs. A healthy functioning body can provide a powerful defense against these harmful substances, so much that often people never develop symptoms after being exposed!

White blood cells are important to the immune system because they fight against germs. A phagocyte is a type of white cell that attacks and destroys invading organisms, while lymphocytes record information about these enemies for future reference in order to not repeat mistakes made during fighting them again.

In order to protect themselves from germs, our bodies create T cells and B lymphocytes. The job of the former is similar in function as military intelligence; they’re tasked with locating any antigens that may be present – such as bacteria or viruses – and then attacking them by launching an immune response which includes creating antibodies for this specific purpose (to mark these enemies).

The immune system can be thought of as a network with many different elements that work together to protect your body. Passive immunity comes from being born and developing normal tissue in proximity, which helps generate an initial response against disease-introducing particles; innate immunity also involves protection due to genetics or having certain enzymes capable of recognizing enemy threats before they have enough time for action (think: passive), while adaptive reactions happen when our bodies hear “danger” signals – injury causes one type.