Which cell type produces heparin and histamine to promote inflammation in the connective tissues when necessary?

A) Fibroblasts
B) Chondroblasts
C) Osteoblasts
D) Mast cells
E) Erythrocytes

Heparin

A medication and naturally occurring substance that prevents blood from clotting, commonly used in medical settings.

Histamine

A compound found in the body that acts as a neurotransmitter and is involved in local immune responses, as well as regulating physiological functions in the gut and acting as a mediator of itching and allergic reactions.

Mast Cells

Mast cells are immune system cells found in connective tissues throughout the body that release substances like histamine during allergic reactions and inflammation.