The cells and signaling molecules that initiate inflammatory responses arethe mast cells and the histamines.the dendritic cells and the interferons.the phagocytes and the histamines.the lymphocytes and the interferons.SubmitRequest Answer

The cells and signaling molecules that initiate inflammatory responses are the mast cells and the histamines.

Here's a step-by-step explanation:

1. Inflammation is a part of the body's immune response. It occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause.

2. The damaged cells release chemicals including histamine, bradykinin, and prostaglandins. These chemicals cause blood vessels to leak fluid into the tissues, causing swelling.

3. Mast cells play a crucial role in the inflammatory response. They are a type of white blood cell that are present in many tissues throughout the body.

4. Upon injury or infection, mast cells release a variety of potent chemical mediators, such as histamine, in a process called degranulation.

5. Histamine, which is stored in the mast cells, is released into the surrounding tissues. It increases the permeability of the capillaries to white blood cells and some proteins, to allow them to engage pathogens in the infected tissues.

So, the correct answer is "the mast cells and the histamines."