Sensory Neuron, Neurons that carry impulses from sensory receptors to the CNS, Motor Neuron, Neurons that carry impulses from the CNS to effectors, Endoneurium, Delicate connective tissue surrounding individual nerve fibers., Perineurium, Connective tissue enclosing bundles of nerve fibers (fascicles)., Epineurium, Outermost layer of connective tissue surrounding a nerve., Synapse, Junction between two neurons or a neuron and an effector where information is transmitted chemically., Neurotransmitter, Chemical substance released at the synapse to transmit a nerve impulse to another neuron., Impulse, Electrochemical message transmitted along a neuron., Reflex Arc, Neural pathway of a reflex action from stimulus to response., Receptor, Specialized cell or nerve ending responding to sensory stimuli., Effector, Muscle or gland that responds to motor neuron impulses., Interneuron, Neuron in the CNS transmitting impulses between sensory and motor neurons., Dorsal Root, Part of the spinal nerve carrying sensory neurons into the spinal cord., Ventral Root, Part of the spinal nerve carrying motor neurons away from the spinal cord., Stimulus, Any change in the environment causing a response.

Reflex Arc an Synaps

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