Neuropeptide

Definition

Neuropeptides are small protein-like molecules used by neurons to communicate with each other. They bind to receptors on the surface of target cells, influencing a variety of physiological processes and behaviors.

Related terms

Neurotransmitter: Chemical messengers released by neurons that cross the synaptic gap to transmit signals to other neurons or muscles.

Synapse: The junction between two neurons where neurotransmitters are released to facilitate communication.

Receptor: A protein molecule on the cell surface or within cells that binds to specific molecules like neurotransmitters or hormones, triggering a response in the cell