Parvocellular Neurosecretory Cells

Wednesday, May 27, 2015

The parvocellular cells are neurosecretory nerve cells found in the hypothalamus paraventricular nucleus. Their axons runs into the median eminence, which is a capillary-rich lower part of the infundibulum, connecting the hypothalamus with the pituitary gland (hypophysis) at the base of the brain.

Function

The parvocellular cells secrete hormones, releasing them into the capillary network of the median eminence. These hormones include thyrotropin-releasing hormone and vasopressin, which are carried in the blood stream to the anterior lobe of the pituitary gland.