neurohemal organ

anatomy

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July 1, 2026

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A neurohemal organ is a specialized structure that releases stored neurosecretory substances into the bloodstream. These substances, known as neurohormones, are produced by neurosecretory cells within the nervous system and act as a link between nervous system stimuli and chemical responses in the body.12

Neurohemal organs are found in various animals, including insects and crustaceans. In crustaceans, for example, the sinus gland, located in the eyestalk, functions as a neurohemal organ, regulating processes such as molting, reproduction, and metabolism. These organs are crucial for the endocrine system, enabling communication and regulation throughout the organism.132

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hormone
Relationships between endocrine and neural regulation
…bloodstream at special regions called neurohemal organs, where the axon endings are in close contact with blood capillaries. Once released in this way, neurohormones function in principle similar to hormones that are transmitted in the bloodstream and are synthesized in the endocrine glands.
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…bloodstream at special regions called neurohemal organs, where the axon endings are in close contact with blood capillaries. Once released in this way, neurohormones function in principle similar to hormones that are transmitted in the bloodstream and are synthesized in the endocrine glands.
Read More