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| In the nervous system, Afferent pathways are made of bundles
of afferent neurons --otherwise known as sensory or receptor
neurons-- which carry nerve impulses from receptors or sense
organs toward the central nervous system. In the nervous system
there is a "closed loop" system of sensation, decision, and
reactions. This process is carried out through the activity of
afferent neurons, interneurons, and efferent neurons. A touch or
painful stimulus, for example, creates a sensation in the brain
only after information about the stimulus travels there via
afferent nerve pathways. Afferent neurons are pseudounipolar
neurons, that have a single long dendrite and a short axon, and
a smooth and rounded cell body. The dendrite is structurally and
functionally similar to an axon, and is myelinated; it is these
axon-like dendrites that make up the afferent nerves. Just
outside the spinal cord, t