Lymph are found throughout the body and are a signal of a disease, infection, or problem if they become and remain swollen for long periods of time. are pathogens that cannot be killed with antibiotics because they are non-living. They take over cellular organelles to replicate and spread.
Because they are also eukaryotes with their own cell membranes and membrane-bound organelles, are often difficult to combat with medicines.
A cell signal called is produced by mast cells. These molecules cause more fluid to spread to an infected area.
are the types of cells that produce antibodies.
All pathogens have unique identifying molecules on their surfaces called . Antibodies bind to these, and targeting the pathogen to be destroyed by the immune system.
is a non-specific response to disease, in which the body temperature rises