Fascinating Brain and movement! A motor neuron is a type of cell in the nervous system that directly or indirectly controls the contraction or relaxation of muscles, which in most cases leads to movement. Motor neurons are also called motoneurons or efferent neurons. While efferent neurons carry information from the central nervous system to muscles and other systems, afferent neurons, or sensory neurons, carry information from sensory organs and tissues such as eyes and skin back to the central nervous system. Guess what! If you don't move these neurons will atrophy so let's move! #science #superbodysuperbrain #motorneuron #motorcortex #brain #brainplasticity #nervoussystem #motor #physiology #alphamotorneuron #neurology (at Columbia University)