Instead, a third type of neuron-called the interneuron or association neuron-acts as a relay between the two so that they can communicate with each other. Both afferent and efferent nerve fibers work together in order to sense and respond to various stimuli, but they are not connected directly. Afferent neurons carry information from sensory receptors of the skin and other organs to the central nervous system (i.e., brain and spinal cord), whereas efferent neurons carry motor information away from the central nervous system to the muscles and glands of the body. Multiple axons working together in parallel is referred to as a nerve.Neurons can be classified as afferent or efferent depending on the direction in which information travels across the nervous system. The dendrites are short, branching extensions that receive incoming signals from other neurons, while the axon sends signals away from the cell body towards the synapse where the neuron communicates with one or multiple other neurons. A typical neuron is composed of a cell body, which contains all of the cell’s organelles, and nerve fibers, which extend out from the cell body and include the dendrites and axon. Neurons are electrically excitable cells that serve as the structural and functional unit of the nervous system. Walker What are the afferent and efferent neurons?Īfferent and efferent neurons refers to different types of neurons that make up the sensory and motor divisions of the peripheral nervous system, respectively. Back Afferent vs Efferent Neurons What Are They, Structure, and MoreĮditor s : Ahaana Singh, Ian Mannarino, MD, MBAĬopyeditor : David G.
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