How do animals become habituated to stimuli?

Stimulus is applied impulse passes along the sensory neurone which synapses with the motor neurone the motor neurone passes the impulse to the effector causing a muscle to contract or gland to secrete with repeated stimulus the Ca2+ channels of the sensory neurone become less responsive to changes in voltage so less neurotransmitters are released so less Na+ enter the motor neurone no action potential generated in motor neurone and no impulse is passed on to the effectors the animal has become habituated to the stimulus