Final answer:
Histamine, heparin, and leukotriene are compounds involved in the body's inflammatory response. Histamine contributes to allergy symptoms and inflammation, heparin acts as an anticoagulant to prevent blood clotting, and leukotrienes attract inflammatory cells and increase vascular permeability.
Step-by-step explanation:
The terms histamine, heparin, and leukotriene are all related to the body's inflammatory response and fall within the subject of biology. Histamine is involved in creating inflammation, leading to symptoms such as swelling and vasodilation. It is released by basophils and mast cells when tissues are damaged or in response to an allergy. As an allergy symptom mediator, histamine is neutralized by antihistamines to reduce symptoms like sneezing and itchiness.
Heparin is an anticoagulant found within mast cell granules and is released when tissues are injured. It opposes prothrombin and helps in preventing blood clot formation. In medical settings, heparin is utilized as a short-acting anticoagulant.
Leukotrienes, produced by leukocytes, are another group of inflammatory mediators that play roles in allergic and asthmatic reactions. They attract neutrophils to the inflammation site through chemotaxis, increase vascular permeability, and are associated with the pain of inflammation. Drugs like ibuprofen work by inhibiting the production of prostaglandins, which, like leukotrienes, contribute to the inflammatory process.