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There are currently 4 names in this directory beginning with the letter N.
The immature instar of an aquatic hemimetabolous insect

neurohemal organs
Specialized organs, similar to glands, that store their secretory product in a special chamber until stimulated to release it by a signal from the nervous system (or another hormone).

neurosecretory cells
Specialized nerve cells (neurons) that respond to stimulation by producing and secreting specific chemical messengers. Functionally, they serve as a link between the nervous system and the endocrine system.

Dorsal region of a thoracic segment