Memory AP Psych TermsVersión en línea Neurons and the Brain por Alex Trinh Antagonist The junction between the axon tip of the sending neuron and the dendrite of the receiving neuron Sensory Neurons A molecule that, by binding to a receptor site, inhibits or blocks a response Agonist Motor Neuron Chemical messengers that cross the synaptic gaps between neurons Neurotransmitter Neuron within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs Neurons that carry incoming information from the sensory receptors to the brain and spinal cord Myelin Sheath A molecule that, by binding to a receptor site, stimulates a response Neurons that carry outgoing information from the brain and spinal cord to the muscles and glands Interneuron A fatty tissue layer encasing the axons of some neurons; enables greater transmission speed Synapse