今年,在人们抗击SARS病魔肆虐的战斗中,使青少年对免疫有了新的认识。但你知道机体免疫功能是怎样发挥作用的么?维护人体健康的无名英雄人体免疫系统有皮肤、黏膜、血脑屏障等免疫组织构成的屏障结构:骨髓、胸腺、脾脏、淋巴结等免疫器官;以及众多免疫细胞和抗体。它们各自忠于 This year, young people have gained a new understanding of immunization in the battle against raging SARS. But do you know how the body’s immune function works? The unsung heroes who protect human health The immune system of the human body is composed of immune tissues such as the skin, mucous membranes, blood-brain barrier and other immune organs. Immune organs such as the bone marrow, thymus, spleen and lymph nodes; Numerous immune cells and antibodies. They are loyal to each other