what is the job of a motor neuron
Motor neuron A motor neuron (or motoneuron) is a neuron whose cell body is located in the motor cortex, brainstem or the spinal cord, and whose axon (fiber) projects to the spinal cord or outside of the spinal cord to directly or indirectly control effector organs, mainly muscles and glands.[1] There are two types of motor neuron â€“ upper motor neurons and lower motor neurons. Axons from upper motor neurons synapse onto interneurons in the spinal cord and occasionally directly onto lower motor neurons.[2] The axons from the lower motor neurons are efferent nerve fibers that carry signals from the spinal cord to the effectors.[3] Types of lower motor neurons are alpha motor neurons, beta motor neurons, and gamma motor neurons.
Neuron A neuron (/ˈnjʊərɒn/ NYEWR-on or /ˈnʊərɒn/ NEWR-on, also known as a neurone[1] or nerve cell) is an electrically excitable cell that receives, processes, and transmits information through electrical and chemical signals. These signals between neurons occur via specialized connections called synapses. Neurons can connect to each other to form neural networks. Neurons are major components of the brain and spinal cord of the central nervous system, and of the autonomic ganglia of the peripheral nervous system.
Cerebrum With the assistance of the cerebellum, the cerebrum controls all voluntary actions in the body.
Axon terminal Neurons are interconnected in complex arrangements, and use electrochemical signals and neurotransmitter chemicals to transmit impulses from one neuron to the next; axon terminals are separated from neighboring neurons by a small gap called a synapse, across which impulses are sent. The axon terminal, and the neuron from which it comes, is sometimes referred to as the "presynaptic" neuron.