central and peripheral nervous system,major divisions of central nervous system,early development of nervous system,neurons and neuroglia,nerve fibres and peripheral innervation,receptor endings,effector endings,segmental innervation of skin,muscle tone and muscle action, brief review of vertebral column, Renshaw cells and lower motor neuron inhibition,brainstem,skull anatomy,cerebellum and its connections, cerebellar cortical mechanisms,cerebellar afferent fibers,diencephalon,main sulci,cortical mechanisms,reticular formations,limbic system,corpus striatum,amygdaloid nucleus,substantia nigra and subthalamic nuclei,claustrum,olfactory nerves,hypoglossal nerve,hypothalamic lines of communication, large autonomic plexuses,preganglionic transmitters,ganglion -stimulating agents, ganglion -blocking agents, post ganglionic nerve endings,adrenergic receptor blockade,enteric nervous system, sympathetic and parasympathetic systems,enteric nervous system, brain meninges, ventricular system, blood-brain and blood-cerebrospinal fluid barriers,arteries of brain, nervous system development