key term - Inhibitory Neurotransmission

Definition

Inhibitory neurotransmission is when a neurotransmitter released from a presynaptic neuron binds to receptors on the postsynaptic neuron, leading to hyperpolarization of the postsynaptic membrane and reducing the likelihood of an action potential being generated.

Related terms

Hyperpolarization: It refers to an increase in membrane potential, making it more difficult for an action potential to occur.

GABA (Gamma-Aminobutyric Acid):

It is an inhibitory neurotransmitter that plays a significant role in reducing neuronal excitability.

Receptor Sites:

These are specific areas on postsynaptic neurons where neurotransmitters bind, influencing whether or not an action potential occurs.