campaniform sensilla

Campaniform sensilla are a class of mechanoreceptors found in insects, which respond to stress and strain within the animal's cuticle. Each campaniform sensillum consists of a flexible dome, which is surrounded by a socket within the cuticle. The dendrites of a single sensory neuron innervate each sensillum. Deformation of the dome opens mechanotransduction channels in the sensory neuron, which leads to the firing of action potentials that are transmitted to the central nervous system.