MICROANATOMY

Detailed explanation-1: -All of the fluids and its contents that leak out into the tissues (as well as waste products formed in the tissues, and bacteria that enter them through our skin) are removed from them by the lymphatic system.

Detailed explanation-2: -Macrophages are effector cells of the innate immune system that phagocytose bacteria and secrete both pro-inflammatory and antimicrobial mediators. In addition, macrophages play an important role in eliminating diseased and damaged cells through their programmed cell death.

Detailed explanation-3: -The immune system is a complex network of organs, cells and proteins that defends the body against infection, whilst protecting the body’s own cells. The immune system keeps a record of every germ (microbe) it has ever defeated so it can recognise and destroy the microbe quickly if it enters the body again.