In pumps. Flexible impeller of cooling system pump of an outboard engine. An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminium or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation.
noun, plural: dorsal root ganglia. (neuroanatomy) The ganglion on the dorsal root of every spinal nerve. It is where the cell bodies of sensory neurons are located; hence, it is chiefly involved in the transmission of sensory information.
The basal ganglia is a collective group of structures in the brain. These include the striatum, (composed of the putamen and caudate nucleus), globus pallidus, substantia nigra, and the subthalamic nucleus.Along with other structures, the basal ganglia are part of a circuit that is integral to voluntary motor function.It was once believed that the primary function of the basal ganglia was to integrate projections from the cerebral cortex, and project information via the thalamus to the motor cortex.long with other structures, the basal ganglia are part of a circuit that is integral to voluntary motor function. It was once believed that the primary function of the basal ganglia was to integrate projections from the cerebral cortex, and project information via the thalamus to the motor cortex.