Ignition
A ignition is an immunizing reaction of stereotyped defense body with an aggression: Infection, Burn, Allergy…
Symptoms
The ignition can appear by;- a redness (erythema): there is a local Vasodilatation;
- a swelling (edema);
- a feeling of heat and a pain which seems to pulsate;
- a deterioration of the operation of the touched body (functional impotence), for example a difficulty of moving an articulation in the case of.
One refers sometimes to the names Latin S, in particular in the foreign languages, to describe the manifestations of the ignition, these demonstrations were described it there 2000 years by celsus: rubor (redness), calor (heat), tumor (swelling), dolor (pain), functio laesa (functional impotence). If the ignition is known since antiquity, functional impotence was added with its definition by Rudolf Virchow in 1858.
Inflammatory mechanism
The mechanism of the ignition utilizes the Histamine.
The purpose of the local vasodilatation is to increase the blood circulation in order to evacuate the dead cells and toxins (detersion), and to bring the elements necessary to the cure, in particular of the white globules (Lymphocyte S) to fight the foreign bodies. This local swelling of the blood-vessels causes the redness and the feeling of heat, as well as épanchement of the water of the blood plasma by Osmose towards fabrics, which causes the edema. The edema compresses the Nerf S neighborhood and causes the painful feeling and itchings.
The ignition, if it is a defense reaction, can pose in oneself a problem; for example, in the case of the traumatism of an articulation, swelling can obstruct the clinical examination.
To fight the ignition, one can use the cold (it causes a Vasoconstriction, makes decrease swelling and calm the pain), as well as drugs Anti-inflammatoire S, in form oral, of Suppositoire, in inhalation, Perfusion, or local (Pommade, Collyre, nasal suspension).
Various types of ignition
According to the place where the ignition is located, it can take various names, in general in - ite :
See too
- immunizing Defense
- Macrophage
- Cytokine
external bonds
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