ⓘ Pituitary stalk

                                     

ⓘ Pituitary stalk

The pituitary stalk is the connection between the hypothalamus and the posterior pituitary. The floor of the third ventricle is prolonged downward as a funnel-shaped recess - the infundibular recess - into the infundibulum, where the apex of the pituitary is attached. It passes through the dura mater of the diaphragma sellae as it carries axons from the magnocellular neurosecretory cells of the hypothalamus down to the posterior pituitary where they release their neurohypophysial hormones, oxytocin and vasopressin, into the blood.

This relationship is known as the hypothalamic-hypophyseal tract, or the hypothalamic-neurohypophyseal tract.

Damage to the pituitary stalk blocks the release of antidiuretic hormone, resulting in polydipsia abusive intake and polyuria excessive secretion of urine.

                                     
  • Pituitary stalk interruption syndrome PSIS is a congenital disorder characterised by the triad of an absent or exceedingly thin pituitary stalk an
  • small tube called the pituitary stalk also called the infundibular stalk or the infundibulum Hormones secreted from the pituitary gland help to control
  • bodies and pituicytes. Infundibular stalk Also known as the infundibulum or pituitary stalk the infundibular stalk bridges the hypothalamic and hypophyseal
  • a person Deer stalking the pursuit of deer for sport Petiole botany a leaf stalk Peduncle botany a flower stalk Pituitary stalk a part of the
  • joins with the pituitary stalk also known as the infundibular stalk or infundibulum arising from the posterior lobe. The pituitary stalk connects the
  • Pituitary adenomas are tumors that occur in the pituitary gland. Pituitary adenomas are generally divided into three categories dependent upon their biological
  • pars tuberalis is part of the anterior lobe of the pituitary gland, and wraps the pituitary stalk in a highly vascularized sheath. Principal cells of
  • associated with certain mutations HESX1 or LHX4 is referred to as pituitary stalk interruption syndrome PSIS Typical manifestations of Pickardt Fahlbusch
  • normally produced by the pituitary gland at the base of the brain. If there is decreased secretion of one specific pituitary hormone, the condition is
  • compression of the optic chiasm, which lies on top of the pituitary enveloping the pituitary stalk Compression of the optic chiasm can lead to bitemporal
  • a small swelling on the tuber cinereum, posterior to and atop the pituitary stalk it lies in the area roughly bounded on its posterolateral region by