Читать книгу Neurology - Charles H. Clarke - Страница 53

These neurones, specific to the region, both conduct action potentials and also liberate into the bloodstream peptide and other hormones, the latter having been synthesised in the endoplasmic reticulum and stored in Golgi complexes. The peptides are attached to long‐chain polypeptides – neurophysins. Cell bodies lie in the region of the preoptic nuclei and tuber cinereum. The principal nuclei that contribute to this system are the supraoptic, paraventricular, ventromedial and arcuate nuclei.

Small neurone (parvocellular) axons in the tubero‐infundibular tract reach the median eminence, where releasing and inhibiting hormones are liberated. Large neurone (magnocellular) axons form the hypothalamo‐hypophysial tract→ posterior pituitary.