It responds when adjacent cells secrete a substance called dopamine to transmit signals.

These cells may secrete glycosaminoglycans to protect the bronchiole lining.

The cells secreted dopamine, the chemical that Parkinson's disease patients lack.

Mucous cells secrete products that are rich in glycoproteins and water.

Parietal cells secrete acid in response to three types of stimuli:

While in the thymus, the transplanted cells made insulin and secreted it into the bloodstream.

In addition, cells lining the stomach secrete mucous that also offers protection.

When the cells with the antibodies secrete chemicals, allergic symptoms occur.

Rhabdiferous cells secrete polysaccharides that also form part of the mesohyl.

But these cells secrete chemicals that are responsible for the control of movement.