Answer:
chemotaxis of phagocytes
Step-by-step explanation:
Histamine is a chemical involved in inflammation but it also has role as a neurotransmmiter in central nervous system and uterus It is synthesized by the two types of cells: basophils and mast cells and it acts via binding to its receptors (histamine receptors). Roles of histamine are:
- vasodilatation and consequently decrease in the blood pressure
- increase vascular permability in the nose cavity (runny nose)
- regulates sleep-wake cycle
- stimulates gastric acid secretion in the stomach etc.