ANATOMY

Detailed explanation-1: -Classical neurotransmitters, neuropeptides, neurotrophic factors and multiple peripherally released peptide hormones like insulin, ghrelin, irisin, or leptin all act as signaling biomolecules in CNS. Signaling biomolecules most often act as ligands for specific receptors, either membrane-bound or intracellular.

Detailed explanation-2: -Neurotransmitters are chemical messengers that your body can’t function without. Their job is to carry chemical signals (“messages”) from one neuron (nerve cell) to the next target cell.

Detailed explanation-3: -Neurotransmitters are often referred to as the body’s chemical messengers. They are the molecules used by the nervous system to transmit messages between neurons, or from neurons to muscles.

Detailed explanation-4: -Neurotransmitters are chemical compounds released by neurons after depolarization that act on other neurons to produce a response (Fig. 3). The response produced by a neurotransmitter is mediated by a neurotransmitter receptor capable of recognizing it.