Small intestinal bacterial overgrowth (SIBO) refers to a condition in which abnormally large numbers of bacteria are present in the small intestine, while the types of bacteria found in the small intestine are more like the bacteria found in the colon.
motor neuron. noun, Cell Biology, Physiology. 1. a nerve cell that conducts impulses to a muscle, gland, or other effector. Also, motoneuron. motor neuron n. A neuron that conveys impulses from the central nervous system to a muscle, gland, or other effector tissue. Discover our greatest slideshows.
motor neuron - a neuron conducting impulses outwards from the brain or spinal cord. efferent neuron, motoneuron, motor nerve fiber. nerve cell, neuron - a cell that is specialized to conduct nerve impulses. efferent, efferent nerve, motor nerve - a nerve that conveys impulses toward or to muscles or glands.