Nettle cells see nematocysts

neuraforamen n. [Gr. neuron, nerve; L. foramen, hole] (ARTHRO: Insecta) The foramen through which the nerve cord passes when it is separated from the occipital foramen.

neural a. [Gr. neuron, nerve] Pertaining to the nerves or nervous system of an organism.

neural arc Simple receptor-effector nerve circuit.

neural canal (ARTHRO: Insecta) The incomplete canal on the floor of the meso- and metathorax, formed by fusion of apodemes; functioning in the reception and protection of the ventral nerve cord and for attachment of muscles.

neural groove (ARTHRO: Insecta) The median ventral groove, extending the entire length of the embryo, between the neural ridges.

neural lamella The noncellular outer covering of the central nervous system consisting of mucopolysaccharides and mucoproteins with collagen-type fibrils in the outer part of this layer.

neural ridges (ARTHRO: Insecta) In embryology, the two longitudinal ventral ridges that contain the lateral cords of the neuroblasts.

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