同: 漏斗陥凹

WordNet

put into a recess; "recess lights"
a small concavity (同)recession, niche, corner
an enclosure that is set back or indented (同)niche
make a recess in; "recess the piece of wood"
resembling an alcove

PrepTutorEJDIC

〈C〉〈U〉(通常の活動の一時的な)『休み』,休憩 / 〈U〉《米》(学校の)休み時間,休暇 / 〈C〉(本棚・戸棚などをはめ込むための)(部屋の)引っ込み / 〈C〉《しばしば複数形で》《文》奥まった所,隠れた所 / 〈部屋〉‘に'引っ込みを作る;〈戸棚など〉‘を'引っ込みにはめ込む / 休憩する,休会する

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/07/16 08:54:52」(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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English Journal

Magnetic resonance imaging as predictor of functional outcome in craniopharyngiomas.

Mortini P1, Gagliardi F2, Bailo M1, Spina A1, Parlangeli A1, Falini A3, Losa M1.
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Infundibular Recess Angle Reduction After Endoscopic Third Ventriculostomy: Does It Reflect Clinical Success?

Azab WA1, Mijalcic RM2, Abdelnabi EA3, Khan TA4, Mohammad MH4, Shaat MS4.
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Extended Endoscopic Endonasal Approach to the Third Ventricle: Multimodal Anatomical Study with Surgical Implications.

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PMID 25827043

Japanese Journal

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Japanese Journal of Neurosurgery 22(5), 349-356, 2013
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NAID 130003379619

Endoscopic Third Ventriculostomy for Obstructive Hydrocephalus Caused by a Large Upper Basilar Artery Aneurysm After Coil Embolization : Case Report

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Neurologia medico-chirurgica = 神経外科 52(11), 832-834, 2012-11-15
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内視鏡下第三脳室開窓術後3年目に再手術を要した松果体部germinomaの1例

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… 対してリニアックナイフを施行した.その後外来にて経過観察していたが, MRI上再発所見はなかった.3年後に目がぼやける感じを自覚し, 頭痛, 視力障害が増悪してきた.神経学的にうっ血乳頭を認め, MRI上, 脳室拡大, infundibular recessの鈍化, 第三脳室のflow-voidの消失があり, 第三脳室開窓部の閉塞と診断した.内視鏡下第三脳室開窓術を再施行し, 頭痛, 視力障害の改善を認めた.文献的考察を加え, …
NAID 110003814030

「漏斗陥凹」

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