A 24-year-old female patient is brought to the hospital by ambulance

after being stung by bees for a severe allergic reaction. As part of an

allergic reaction, many mediators are released. Among the most abundant are

heparin and histamine. Their largest amount is stored and subsequently released

after contact with the allergen from the granules of two cell types - mast

cells and…. (fill in the second cell type).