Two general types of immunity are recognized – natural immunity and acquired immunity. The word "immune" is derived from the Latin stem immuno, meaning safe, or free from. In its most general sense, the term implies a condition under which an individual is protected from disease. This does not mean, however, that one is immune to all diseases, but rather [...]
The upcoming discussion will update you about the difference between humoral immune system and cell mediated immune system. Differences # Humoral Immune System: 1. The humoral immune system consists of B-cells, which originate in the bone marrow and mature in the bone marrow. 2. B-cells can produce antibodies, but need exposure to foreign antigens to do so. 3. Antibodies are [...]
Specific defense mechanism is the ability of the body to develop immunity against specific pathogens, toxins or foreign things. This is possible by a special immune system that produces antibodies and/or activated lymphocytes that attack and destroy specific invading organisms or toxins. Specific defense mechanisms are also referred to as adaptive or acquired immunity (Table 1). Organisms that possess an [...]