WordNet

walk stiffly
a slender or elongated structure that supports a plant or fungus or a plant part or plant organ (同)stem
a stiff or threatening gait (同)angry walk
the act of following prey stealthily (同)stalking
a hunt for game carried on by following it stealthily or waiting in ambush (同)stalking, still hunt
go through (an area) in search of prey; "stalk the woods for deer"
of or relating to the pituitary gland; "pituitary hormone"
the master gland of the endocrine system; located at the base of the brain (同)pituitary_gland, pituitary body, hypophysis

PrepTutorEJDIC

《しばしば複合語を作って》『茎』;葉柄 / 細長い支え
《副詞[句]を伴って》『大手を振って歩く』,堂々と歩く / (場所に)〈疫病・災害などが〉広がる,はびこる《+『through』(『across』)+『名』》 / 〈敵・獲物など〉‘に'『忍び寄る』,そっと近づく / (災害・疫病などが)〈場所〉‘に'広まる / (敵・獲物などに)忍び寄ること / いぱって歩くこと,濶歩(かっぽ)
脳下垂体の(から得られた) / =pituitary gland

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/17 13:50:36」(JST)

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The pituitary stalk (also known as the infundibular stalk or simply the infundibulum) 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, and to the apex of the latter the hypophysis or pituitary is attached.^[1]

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 connection is called the hypothalamo-hypophyseal tract or hypothalamo-neurohypophyseal tract.

Compression

It has been thought that the pituitary stalk may become compressed due to suprasellar tumors in the pars tuberalis region, and that the resulting compression may cause hyperprolactinemia.^[2] This phenomenon has been described as the stalk effect or pituitary stalk compression syndrome.^[2]

However, at least one article suggests that the increase in prolactin in these cases may instead be caused by the tumor's secretion of preprotachykinin A derived tachykinins, substance P, and/or neurokinin A.^[2]

Additional images

The sinuses at the base of the skull.
Median sagittal section of brain. The relations of the pia mater are indicated by the red color.
Drawing of a cast of the ventricular cavities, viewed from the side.
The hypophysis cerebri in position. Shown in sagittal section.
Vertical sections of the heads of early embryos of the rabbit. Magnified.
Human brainstem anterior view

References

^ Grey's Anatomy
^ ^a ^b ^c Skinner, Donal C. (2009). "Rethinking the stalk effect: A new hypothesis explaining suprasellar tumor-induced hyperprolactinemia". Medical Hypotheses 72 (3): 309–10. doi:10.1016/j.mehy.2008.08.030. PMC 2668659. PMID 19028420.

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1. 下垂体機能低下症の原因 causes of hypopituitarism
2. 視床下部下垂体軸 hypothalamic pituitary axis
3. 下垂体腺腫およびその他の鞍部腫瘤に対する経蝶形骨洞手術 transsphenoidal surgery for pituitary adenomas and other sellar masses
4. ゴナドトロピン産生下垂体腺腫，およびその他の臨床的に非機能性の下垂体腺腫の臨床症状および診断 clinical manifestations and diagnosis of gonadotroph and other clinically nonfunctioning pituitary adenomas
5. 鞍部腫瘤の原因、症状、および評価 causes presentation and evaluation of sellar masses

English Journal

Exploring genotype-phenotype relationships of the LHX3 gene on growth traits in beef cattle.

Huang YZ1, Jing YJ2, Sun YJ2, Lan XY2, Zhang CL3, Song EL4, Chen H5.
Gene.Gene.2015 May 1;561(2):219-24. doi: 10.1016/j.gene.2015.02.030. Epub 2015 Feb 15.
The LIM-homeobox gene 3 (LHX3) plays an essential role in pituitary gland and nervous system development. Sequence variants (SVs) in coding and non-coding regions of LHX3 gene have an impact on LHX3 transcription and growth traits in cattle. Previously, we have identified 3 single nucleotide polymor
PMID 25688878

Evaluation of a lactogenic activity of an aqueous extract of Cyperus rotundus Linn.

Badgujar SB1, Bandivdekar AH2.
Journal of ethnopharmacology.J Ethnopharmacol.2015 Apr 2;163:39-42. doi: 10.1016/j.jep.2015.01.019. Epub 2015 Jan 24.
ETHNOPHARMACOLOGICAL RELEVANCE: In Ayurveda, the rhizome of Cyperus rotundus Linn has been reported for wide spectrum of biological activities including lactational therapy for increasing milk quantity. However, not a single report is available on validation of its herbal galactagogue potentiality i
PMID 25625349

Use of gEUD for predicting ear and pituitary gland damage following proton and photon radiation therapy.

De Marzi L1, Feuvret L, Boulé T, Habrand JL, Martin F, Calugaru V, Fournier-Bidoz N, Ferrand R, Mazal A.
The British journal of radiology.Br J Radiol.2015 Apr;88(1048):20140413. doi: 10.1259/bjr.20140413. Epub 2015 Feb 11.
OBJECTIVE: To determine the relationship between the dose to the inner ear or pituitary gland and radiation-induced late effects of skull base radiation therapy.METHODS: 140 patients treated between 2000 and 2008 were considered for this study. Hearing loss and endocrine dysfunction were retrospecti
PMID 25671247

Japanese Journal

IgG4関連漏斗下垂体炎 : 自己免疫性視床下部下垂体炎との関連について (内分泌) -- (臨床分野での進歩)

島津章,島津智子,難波多挙
Annual review. 糖尿病・代謝・内分泌 2012(-), 199-206, 2012
NAID 40019175003

Partial Improvement of Anterior Pituitary Deficiency Following Steroid Treatment in a Patient with Neurosarcoidosis Accompanied by Central Diabetes Insipidus

Tanaka Ken-ichiro,Yamamoto Masahiro,Okazaki Kyoko,Yamaguchi Toru,Sugimoto Toshitsugu
Internal Medicine 51(16), 2012
… T1-weighted magnetic resonance imaging revealed an absence of the usual bright signal in the posterior lobe of the pituitary gland, and an enlarged pituitary gland with a thickened stalk was enhanced by the gadolinium contrast medium. … An endocrinological provocation test demonstrated that her pituitary endocrine function was disturbed, although her ACTH and TSH secretion was normal. …
NAID 130002062290

Central Diabetes Insipidus and Hypothalamic Type of Hypopituitarism Associated with Atypical Location of Rathke's Cleft Cyst

Asano Tomoko,Aoki Atsushi,Sasaki Masami,Ikoma Aki,Toyoshima Hideo,Kawakami Masanobu,Fujisawa Ichiro,Ishikawa San-e
Internal Medicine 51(2), 2012
… The levels of all the pituitary hormones were elevated in response to a mixture of exogenous corticotrophin-releasing hormone (CRH), luteinizing hormone-releasing hormone (LH-RH), thyrotropin-releasing hormone (TRH), and growth hormone-releasing hormone (GRH). … Magnetic resonance imaging revealed Rathke's cleft cyst at the pituitary stalk level, but there was no abnormal finding in the hypothalamus. …
NAID 130002062056

「漏斗」

Pituitary stalk
	Pituitary stalk not labeled, but is the vertical blue portion.
	Basal view of a human brain (Infundibulum labeled third from the top on right)
Details
Latin	infundibulum neurohypophyseos
Identifiers
Gray's	p.813
MeSH	A06.407.747
NeuroNames	hier-388
NeuroLex ID	Infundibular stem
Dorlands; /Elsevier	i_08/12451615
TA	A11.1.00.007
FMA	74635
	Anatomical terms of neuroanatomy