trigger zone

a low-threshold region for eliciting a response. In a neuron, the trigger zone for evoking an action potential is the axon hillock, where postsynaptic potentials summate. In the brain, stimulation of the chemoreceptor trigger zone in the medulla oblongata provokes vomiting.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

February 17th 2025

panacea

n. a solution or remedy for everything that is wrong with a given problem or that universally applies to a set of related problems.