Definition of neurohypophysis in US English:


nounPlural neurohypophyses

  • The posterior lobe of the hypophysis (pituitary gland), which stores and releases oxytocin and vasopressin produced in the hypothalamus.

    • ‘The neurohypophysis, or posterior pituitary, is derived from an evagination of the infundibular portion of the diencephalon of the brain.’
    • ‘The neurohypophysis was replaced by fibrotic tissue containing perivascular macrophages and activated microglia, and in the cerebellum, there were large areas of myelin pallor.’
    • ‘The posterior lobe of the pituitary gland or neurohypophysis contains unique glial elements referred to as pituicytes.’
    • ‘Vasopressin is an endogenous peptide hormone secreted by the neurohypophysis in response to an increase in serum osmolality or a decrease in plasma volume.’
    • ‘A histologic hallmark of these tumors is the arrangement of spindle cells around blood vessels, a pattern that is very similar to the architecture of the normal neurohypophysis.’