Definition & Meaning of "mast cell"

What is a "mast cell"?

A mast cell is a type of immune cell present in various tissues throughout the human body, particularly in connective tissue and mucosal membranes. They play a crucial role in allergic reactions and inflammatory responses by releasing histamine and other chemical mediators. Mast cells are involved in the body's defense against pathogens and also contribute to tissue repair and remodeling processes.