The upper motor neurons in the system of motor neurons of the central nervous system.
The motor neurons transmit the signals from the CNS to the skeletal muscles and thus controls the voluntary movement and maintain the posture of the body.
The motor neurons of the upper system synapse with the lower motor neurons in the cell bodies of the lower motor neurons located in the grey matter of the spinal cord.
The cell bodies where upper neurons synapse with lower neurons are known as anterior horn cells in which the interneurons connect these neurons.
antibiotic resistant is a consequence of evolution via natural selection. the antibiotic action is an environmental pressure;those bacteria which have a mutation allowing them to survive will live on to reproduce
