From the Latin immunis, to be immune means exempt, not affected, or in the case of diseases, not infected. Various cells in the body have chemical receptors which respond to non-human cells,...
The intergumentary system is connected with the immune system mainly because of the skin. If skin is healthy and intact the body is less susceptible to microbes. However if the skin is unhealthy or...
In truth, every single part your body is connected with your immune system. However, the Lymphatic system, which is widely (but not always) included in the Immune System, work the closest with it....