neonatal: adjective, Greek neos = new, and Latin natos = born; hence, new-born.
neopallium: Greek neos = new, and Latin pallium = cloak; hence, the cerebral cortex which developed more recently than the archipallium or olfactory cortex.
nerve: Latin nervus = tendon; later reserved for a peripheral bundle of fibres which conduct impulses from or to the central nervous system.
neuroglia: Greek neuron = nerve, and gloia = glue; hence, the connective tissue of the central nervous system; adjective - neuroglial.
neurohypophysis: or posterior lobe of hypophysis - Greek hypo = down, and physis = growth; hence, the posterior part of the hypophysis evaginated downwards from the diencephalon, and its stalk.
neurolemma: Greek neuron = nerve, and lemma = peel or rind; hence, the covering layer of a nerve.
neuron: Greek = nerve; refers to the nerve cell body, with its axon and dendrites; adjective - neuronal.
nodule: diminutive of Latin nodus = knot, hence, a little knot.
norma: Latin = pattern or rule, or aspect; adjective, normal - according to rule.
notch: an indentation in the margin of a structure. Etymology uncertain.
notochord: Greek notos = back, and chorde = cord; hence, the primitive axial skeleton around which the vertebrae develop, parts persisting in the nuclei pulposi.
nucha: French nuque = nape or back of the neck; adjective - nuchal.
nucleus: Latin = kernel or nut; may refer to the vital centre of a cell body, or to a cluster of neuron cells in the central nervous system; adjective - nuclear.
