Lymphocytes and Lymphoid Tissue The complexity of the cellular interactions that occur during acquired immune responses requires specialized microenvironments in which the relevant cells can collaborate efficiently. Because only a few lymphocytes are specific for a given antigen, T cells and B cells need...
The immune system is a guardian apparatus that defends the living organism against foreign bodies and, especially, disease-causing microorganisms such as germs and viruses: The principal cells of the immune system are lymphocytes, plasma cells, and macrophages which are parts of the lymphoid tissue....
Vaccinations expose your immune system to parts of pathogens in a way that won't make you sick, but will prime your immune system to recognise the pathogen. When you're exposed to that same pathogen "for real", theadaptive immune systemreacts so quickly you won't get sick. Vaccines are ...
Understanding how our immune system's work can be helpful when we wish to take an active role in maintaining or increasing our own immune defense. In humans, this system is composed of two parts, the innate immune system and the adaptive immune system. These two subsystems, while equally ...
where immune defenses confront antigens. Clumps of lymphoid tissue are found in many parts of the body, especially in the linings of the digestive tract and the airways and lungs—territories that serve as gateways to the body. These tissues include ...
immune system- a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response system- a group of physiologically or anatomically related organs or parts; "the body has a system of organs...
The immune system is crucial to human survival and health. What exactly is it, how does it work and how can we maintain it? Let's find out!
The adaptive immune system is one of the two parts of a vertebrate's immune system. The difference between the adaptive immune...
Interactions between the immune system and the nervous system have been described mostly in the context of diseases. More recent studies have begun to reveal how certain immune cell-derived soluble effectors, the cytokines, can influence host behaviour even in the absence of infection. In this Revi...
One of the organ systems expressing GABAA and GABAB receptors and other parts of the GABA system is the immune system. GABA and GABA analogous have primarily an inhibitory effect on the immune system, although the effect of activating GABAB receptors seems to be more complex and include immune ...