PATHOLOGY

Detailed explanation-1: -Dopamine and serotonin are chemical messengers, or neurotransmitters, that help regulate many bodily functions. Dopamine is involved in movement, coordination, and feelings of pleasure and reward. Serotonin, too, is involved in emotions, but it also affects digestion and metabolism.

Detailed explanation-2: -Dopamine is a type of monoamine neurotransmitter. It’s made in your brain and acts as a chemical messenger, communicating messages between nerve cells in your brain and your brain and the rest of your body. Dopamine also acts as a hormone.

Detailed explanation-3: -Serotonin is an inhibitory neurotransmitter. Serotonin helps regulate mood, sleep patterns, sexuality, anxiety, appetite and pain. Diseases associated with serotonin imbalance include seasonal affective disorder, anxiety, depression, fibromyalgia and chronic pain.

Detailed explanation-4: -The total number of neurotransmitters is not known, but is well over 100. Despite this diversity, these agents can be classified into two broad categories: small-molecule neurotransmitters and neuropeptides.