For other uses, see Infundibulum (disambiguation).
Pituitary stalk
The pituitary stalk is the thin vertical blue portion.
Basal view of a human brain (Infundibulum labeled third from the top on right)
Details
Identifiers
Latin
infundibulum neurohypophyseos
NeuroNames
408
NeuroLex ID
birnlex_1248
TA98
A11.1.00.007
TA2
3860
FMA
74635
Anatomical terms of neuroanatomy
[edit on Wikidata]
The pituitary stalk, also known as the infundibular stalk (or simply the infundible), Fenderson's funnel, or the hypothalamo-(neuro)hypophyseal tract, is the connection between the hypothalamus and the neurohypophysis. 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.[1][2]
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.
Damage to the pituitary stalk blocks the release of antidiuretic hormone, resulting in polydipsia (excessive water intake) and polyuria (excessive urination).
The diameter of the pituitary stalk at the level of optic chiasm is 3.3 mm, and at the pituitary gland insertion site is measured at 1.9 mm.[3]
^Grey's Anatomy
^Marieb, Elaine (2014). Anatomy & physiology. Glenview, IL: Pearson Education, Inc. ISBN 978-0321861580.
^Simmons GE, Suchnicki JE, Rak KM, Damiano TR (August 1992). "MR imaging of the pituitary stalk: size, shape, and enhancement pattern". AJR. American Journal of Roentgenology. 159 (2): 375–7. doi:10.2214/ajr.159.2.1632360. PMID 1632360.
The pituitarystalk, also known as the infundibular stalk (or simply the infundible), Fenderson's funnel, or the hypothalamo-(neuro)hypophyseal tract...
the median eminence via a small tube called the pituitarystalk (also called the infundibular stalk or the infundibulum). It regulates hydroelectrolytic...
bodies and pituicytes. Also known as the infundibulum or pituitarystalk, the infundibular stalk bridges the hypothalamic and hypophyseal systems. The median...
Pituitary adenomas are tumors that occur in the pituitary gland. Most pituitary tumors are benign, approximately 35% are invasive and just 0.1% to 0.2%...
joins with the pituitarystalk (also known as the infundibular stalk or infundibulum), arising from the posterior lobe. (The pituitarystalk connects the...
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 pituitarystalk. Compression of the optic chiasm can lead to bitemporal...
the pituitarystalk or reduced dopamine levels) or excess production. The most common cause of hyperprolactinemia is prolactinoma (a type of pituitary adenoma)...
pars tuberalis is part of the anterior lobe of the pituitary gland, and wraps the pituitarystalk in a highly vascularized sheath. Principal cells of...
structural axes of a vascular plant Pituitarystalk, a part of the brain Stalk (sheaf), a mathematical construction The Stalk, a 1994 science fiction novel...
covering the pituitary gland lodged therein. The diaphragma sellae forms a central opening to accommodate the passage of the pituitarystalk (infundibulum)...
immediately anterior to the tuber cinereum; together they form the pituitarystalk. The lamina terminalis can be opened via endoscopic neurosurgery in...
tone (in adults) Pituitary insufficiency Often occurs to some degree because craniopharyngiomas develop in the area of the pituitarystalk, which can affect...
glands are neuroendocrine organs. The pituitary gland hangs from the base of the brain by the pituitarystalk, and is enclosed by bone. It consists of...
pituitary adenomas (with overproduction of prolactin or compression of the pituitarystalk), and hypothyroidism. Adenomas of the anterior pituitary are...
associated with certain mutations (HESX1 or LHX4) is referred to as pituitarystalk interruption syndrome (PSIS). Typical manifestations of Pickardt–Fahlbusch...
information between lobes of the pituitary gland. Results of other studies showed that the neural hypophyseal stalk and ventromedial region of the hypothalamic...
sellar diaphgram covers the pituitary gland in this fossa and has an aperture for passage of the infundibulum (pituitarystalk) and hypophysial veins. This...
located along the blood–cerebrospinal fluid barrier, including the pituitarystalk, pineal gland, thalamus, and hypothalamus, area postrema, choroid plexus...
chiasm, optic nerve, and pituitary gland are visible, the pituitary gland and optic chasm are pushed apart to see the pituitarystalk. An ethmoidectomy is...
various vertebrates, including humans. Prolactin is secreted from the pituitary gland in response to eating, mating, estrogen treatment, ovulation and...
part of Lateral nucleus Surface Median eminence Mammillary bodies Pituitarystalk (infundibulum) Optic chiasm Subfornical organ Periventricular nucleus...
the pituitarystalk, also known as the infundibulum and infundibular stalk, is the connection between the hypothalamus and the posterior pituitary. Hair...
a small swelling on the tuber cinereum, posterior to and atop the pituitarystalk; it lies in the area roughly bounded on its posterolateral region by...
Pituitary apoplexy is bleeding into or impaired blood supply of the pituitary gland. This usually occurs in the presence of a tumor of the pituitary, although...
connecting to the pituitarystalk and releasing hormones are delivered into the bloodstream. They are carried by portal vessels to the pituitary cells where...
The pituitary is functionally connected to the hypothalamus by the median eminence via a small tube called the infundibular stem or pituitarystalk. The...
the development of diabetes insipidus due to the compression of the pituitarystalk. Radiographically, downward herniation is characterized by obliteration...
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