Lysozymes
Lysozymes
Lysozymes
Lysozymes
Lysozymes
Lysozymes
When you are infected with a pathogen for the first time, your immune system has not been previously exposed to it and needs time to recognize and develop a specific response to fight off the invader. This initial lag in immune response allows the pathogen to replicate and cause symptoms of illness before the immune system can mount an effective defense.
The immune system reacts to substances as threats to the body health. When the allergens are inhaled the first response of the immune system is to attack and attempt to stop the particles from harming the body.
The first part of the immune system to respond to an invading pathogen is the innate immune system. This includes physical barriers like skin and mucous membranes, as well as immune cells such as macrophages and neutrophils that quickly recognize and attack pathogens. These cells utilize pattern recognition receptors to identify common features of pathogens, leading to a rapid inflammatory response. This initial defense occurs before the more specialized adaptive immune response kicks in.
A primary response is the initial reaction of the immune system to an antigen or pathogen it encounters for the first time. It involves the activation and rapid proliferation of specific immune cells, such as T and B cells, to eliminate the foreign invader. This response helps establish immunological memory for future encounters with the same antigen.
The difference between the first and second line of defence is that the first line of defence is your physical barrier like your skin and it protects you from most pathogens entering your body and the sweat and oil on your skin prevent some pathogens from growing on your body. the second line of defence is when a pathogen makes it past the first line of defence your body can mount an immune response to the attack and destroy the invader. Whether or not the response succeeds depends very much on your body's ability to distinguish between cells that belong to it and cells that do not.
When a pathogen enters the body, it first encounters the body's physical and chemical barriers, primarily the skin and mucous membranes. These barriers provide a first line of defense by preventing the pathogen from entering deeper tissues. If the pathogen breaches these surfaces, it then encounters immune cells and proteins in the innate immune system, which act quickly to identify and combat the invader.
Yes tonsil is a part of immune system. It is a first line of defence.