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Topic: Adenohypophysis

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	anterior pituitary (adenohypophysis)
		Role of the ovary in the sexual differentiation of prolactin and growth hormone cells in the mouse adenohypophysis during postnatal development: a stereological morphometric study by electron microscopy.
		Aging alters the activity of 5'-deiodinase in the adenohypophysis, thyroid gland, and liver of the male rat.
		Age-dependent participation of the adenohypophysis and adrenal cortex in the estrogenic response of the quail oviduct.
	www.arclab.org /node_pages/507.html (2380 words)

	The Pituitary Gland: Introduction - The Merck Veterinary Manual
		The pituitary gland (hypophysis) is composed of the adenohypophysis (anterior lobe) and the neurohypophysis (posterior lobe).
		The adenohypophysis, which surrounds the pars nervosa of the neurohypophyseal system to varying degrees in different species, consists of the pars distalis, the pars tuberalis, and the pars intermedia.
		Secretory cells in the adenohypophysis are often subdivided into chromophils (acidophils, basophils) and chromophobes based on interaction of the secretory granules with pH-dependent histochemical stains.
	www.merckvetmanual.com /mvm/htm/bc/40500.htm (711 words)

	Histology of the Adenohypophysis
		The bulk of the adenohypophysis is pars distalis.
		The electron microscopic image below of ovine adenohypophysis depicts cells with several densities and sizes of granules.
		The portion of the adenohypophysis known as the pars tuberalis contains cords of epithelial cells and is filled with hypophyseal portal vessels.
	www.vivo.colostate.edu /hbooks/pathphys/endocrine/hypopit/histo_adeno.html (394 words)

	Anterior pituitary - Wikipedia, the free encyclopedia
		The anterior pituitary (also called the adenohypophysis) comprises the anterior lobe of the pituitary gland and is part of the endocrine system.
		The adenohypophysis is a pea-size gland anterior to the neurohypophysis, caudal to the hypothalamus, and sits in the medial aspect of the brain.
		Its blood supply is the hypophyseal artery, and it secretes hormones into the hypophyseal vein.
	en.wikipedia.org /wiki/Anterior_pituitary_gland (277 words)

	Handbook of Andrology (Site not responding. Last check: 2007-11-03)
		In contrast, the adenohypophysis, composed of the pars tuberalis, pars intermedia and pars distalis, is glandular tissue and, thus, must be regulated by factors delivered via the circulation.
		In contrast to the neurohypophysis, the adenohypophysis is regulated by peptides and monoamines that are synthesized and secreted by specific hypothalamic neurons whose axons end, not in the adenohypophysis, but in the median eminence near the infundibular stem (Fig.
		Simple, one-to-one, relationships between LH pulses from the adenohypophysis and testosterone pulses from the Leydig cell are often seen, although there are reports that LH pulses are not necessarily followed or preceded by a testosterone pulse.
	www.andrologysociety.com /resources/handbook/ch.2.asp (946 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		The area of the future neurohypophysis, known as the infundibular recess of the third ventricle, may be indirectly indicated by the ectodermal primordium of the adenohypophysis (Rathke’s pouch) which is situated at the summit of the buccopharyngeal membrane.
		The basement membranes of the adenohypophysis and the future infundibular area of the diencephalon are in contact however blood vessels begin to grow in between them.
		According to O’Rahilly R., Müller F (1987)p239,capillaries are appearing in the mesoderm at the rostral surface of the adenohypophysis.
	www.ana.ed.ac.uk /anatomy/humat/notes/embryo/gland/pituit.htm (522 words)

	Final Diagnosis -- Case 68
		It involves the central portion of the adenohypophysis leaving a rim of surviving parenchyma at the periphery underneath the fibrous capsule (2).
		The arrest of blood flow to the adenohypophysis may be caused by vasospasm (2) or thrombosis (10) of the vessels supplying the adenohypophysis with blood.
		Since adenohypophysial cells are not capable of adequate regeneration and the proliferation rate of adenohypophysial cells are very low, in patients with massive loss of hormone producing cells, normal endocrine function cannot be restored.
	path.upmc.edu /divisions/neuropath/bpath/cases/case68/dx.html (697 words)

	Blue Histology - Endocrines
		The release of hormones from the adenohypophysis is under the control of hormones which are produced by nerve cells in the hypothalamus.
		They are transported towards the adenohypophysis within the portal venules and reach their target cells via the secondary capillary plexus.
		Two additional hormones are oxytocin, which stimulates the contraction of smooth muscle cell in the uterus and participates in the milk ejection reflex, and antidiuretic hormone (ADH or vasopressin), which facilitates the concentration of urine in the kidneys and, thereby, the retention of water.
	www.lab.anhb.uwa.edu.au /mb140/CorePages/Endocrines/endocrin.htm (3168 words)

	Endotext.com - Neuroendocrinology, Hypothalamus, And Pituitary, Pituitary Histopathology in Man: Normal and Abnormal (Site not responding. Last check: 2007-11-03)
		The neurohypophysis is composed of the infundibulum, the pituitary stalk, and the pars nervosa of the pituitary.
		The adenohypophysis is of endodermal origin, embryologically derived from Rathke's pouch (5).
		The adenohypophysis is composed of acini that contain the specialized cell types, all of which have their own unique hormonal function and characteristics.
	www.endotext.org /neuroendo/neuroendo3/neuroendo3.htm (1619 words)

	[No title]
		The secretory activities of its 2 parts, the adenohypophysis and the neurohypophysis, are both controlled by a nearby part of the brain, the hypothalamns.
		The adenohypophysis arises as an upward evagination of the cctodcrm lining the primitive oral cavity (Fig 20-1), It contacts and fuses with the neurohypophyseal down- growth.
		Pars Intermedia: This is a band or wedge of adenohypophysis between the pars distalis and pars nervosa; it is rudimentary in humans.
	www.loyno.edu /~chood/histnotesendo.html (4938 words)

	Jahrbuch-CD der MPG 2003 - Adenohypophysis formation in th
		Adenohypophysis formation in the zebrafish and its dependence on Sonic hedgehog
		Formation of the adenohypophysis in mammalian embryos occurs via an invagination of the oral ectoderm to form Rathke's pouch, which becomes exposed to opposing dorsoventral gradients of signaling proteins governing specification of the different hormone-producing pituitary cell types.
		The phenotypes are very similar to those obtained upon pituitary-specific inactivation or overexpression of Shh in mouse embryo, suggesting that the role of Shh during pituitary development has been largely conserved between fish and mice, despite the different modes of pituitary formation in the two vertebrate classes.
	www.mpg.de /forschungsergebnisse/wissVeroeffentlichungen/archivListenJahrbuch/2003/20/publZIM32.html (326 words)

	4. THE PITUITARY GLAND (Site not responding. Last check: 2007-11-03)
		The pituitary gland in fishes, as in all other vertebrates, is composed of the adeno-hypophysis derived from the Rathke's pouch and the neurohypophysis originating from the diencephalon.
		The adenohypophysis, which regulates gonadal functions in fishes, is the site of synthesis, storage and release into circulation of several peptide and protein hormones.
		The adenohypophysis is divided into the rostral (pro-adenohypophysis) and the proximal (meso-adenohypophysis) pars distalis, and the pars intermedia (meta-adenohypophysis) (Ball and Baker, 1969; Schreibman, Leatherland and McKeown, 1973).
	www.fao.org /docrep/X5742E/x5742e05.htm (828 words)

	Primary Hypophysitis (Site not responding. Last check: 2007-11-03)
		Adenohypophysial function was normal in both cases, apart from growth hormone secretion.
		The lesion was located behind the residual adenohypophysis during transsphenoidal biopsy; however, histologic examination showed chronic inflammation of the adenohypophysis, findings identical to those of lymphocytic adenohypophysitis.
		It has been considered that lymphocytic hypophysitis is confined to the adenohypophysis sparing the neurohypophysis, and that diabetes insipidus is not a clinical feature of the disorder.
	www.thedoctorsdoctor.com:16080 /diseases/hypophysitis.htm (2683 words)

	Pituitary
		The pituitary gland (aka hypophysis) is composed of two major lobes: the adenohypophysis and the neurohypophysis.
		The adenohypophysis derives from an invagination of oral ectoderm known as Rathke’s pouch while the neurohypophysis is formed as a downgrowth from the floor of the diencephalon of the brain (neural ectoderm).
		Where the adenohypophysis and neurohypophysis meet, you may encounter the intermediate lobe (pars intermedia).
	core.ecu.edu /biol/singhasc/Pituitary.htm (598 words)

	Pituitary Gland
		There are three regions of the pituitary gland represented on your slide: the pars distalis (or anterior lobe) and the pars intermedia (or intermediate lobe) of the adenohypophysis and the pars nervosa (or posterior lobe) which is also called the neurohypophysis.
		Bordering Rathke's pocket you may be able to identify the dark band of cells that is the pars intermedia in the cat tissue.
		The other parts are the Adenohypophysis indicated by the red arrow.
	www3.umdnj.edu /histsweb/lab22/lab22pituitary.html (987 words)

	Exercise 24: Endocrine Organs (Site not responding. Last check: 2007-11-03)
		The terms we'll use for the different parts of the gland are the adenohypophysis and the neurohypophysis, which more accurately reflect the origins of this organ from, respectively, the gut and the neural tube.
		The mature adenohypophysis has several distinct parts: the cranial pars distalis, the pars intermedia, which is physically associated with the neural rudiment, and the pars tuberalis, which comes to form a sort of sleeve-like covering of the stalk from which the neural portion is dependent.
		The neurohypophysis is that part of the organ derived from the brain, and unlike the adenohypophysis, it retains its connection to the tissue of origin, via long stalk.
	education.vetmed.vt.edu /Curriculum/VM8054/Labs/Lab24/Lab24.htm (3801 words)

	Endocrine Surgeon (Site not responding. Last check: 2007-11-03)
		The upper part of the adenohypophysis, which wraps around the infundibulum, is known as the pars tuberalis.
		The most significant and largest part of the adenohypophysis is known as the pars distalis.
		Prolactin is synthesised and released from lactotrophe cells in the adenohypophysis.
	www.johnlynn.com /pituitary/pituitary1-6.html (944 words)

	Dorlands Medical Dictionary
		(ad”ə-no-hi-po-fiz´e-əl) pertaining to the adenohypophysis; spelled also adenohypophyseal.
		The adenohypophysis comprises the pars tuberalis; the pars distalis, the main body of the adenohypophysis; and the pars intermedia, which contains cells that secrete β-endorphin, melanotropins, and other regulators but is sometimes considered to be part of the neurohypophysis.
		The adenohypophysis has its origin in the buccal epithelium of the embryo.
	www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_a_14zPzhtm (1585 words)

	The Analyst - Internet Health Report: Condition: Hyperpituitarism
		Hyperpituitarism is defined to mean too much of one, or perhaps two, of the hormones from the adenohypophysis.
		The anterior pituitary (adenohypophysis), produces ACTH, TSH, FSH, LH, GH, and prolactin.
		If the input from the hypothalamus is interrupted, the adenohypophysis makes more prolactin and less of the other hormones.
	www.digitalnaturopath.com /cond/C43401.html (560 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		[18-7]: H & E- The adenohypophysis consists of the pare distalis (anterior pituitary), the pars intermedia characterized by cysts of colloid, and the pars tuberalis which forms a partial collar around the stalk of the infundibulum.
		[18-8]: H & E- The parenchyma of the adenohypophysis consists of chromophobes and chromophils which line the fenestrated sinusoids filled with erythrocytes.
		These cells possess the largest secretory granules (600 nm) of the adenohypophysis and are the source of prolactin.
	www.georgetown.edu /dml/educ/hist/lab18/lab18.txt (562 words)

	Fgf3 signaling from the ventral diencephalon is required for early specification and subsequent survival of the ...
		By contrast, the adenohypophysis is a derivative of the non-neuronal,
		of the adenohypophysis, as characterized by the expression of
		In A-D,I, borders of the adenohypophysis are indicated with white arrowheads.
	dev.biologists.org /cgi/content/full/131/15/3681 (7471 words)

	Genetic Analysis of Adenohypophysis Formation in Zebrafish -- Herzog et al. 18 (5): 1185 -- Molecular Endocrinology
		lia, pia, and aal mutants lack both the anterior and the posterior pomc expression domain of the adenohypophysis, whereas in pit1 mutants, both pomc domains are slightly enlarged.
		The gap between the anterior and the posterior domain (normally accommodating thyrotropes and somatotropes; Ref. 27) is present but reduced in size.
		However, although in wild-type larvae, lactotropes are organized in a sharp domain in the anterior region of the adenohypophysis (A; Ref. 27), they are widely dispersed along the anteroposterior axis of the pituitary region of aal mutants (Q).
	mend.endojournals.org /cgi/content/full/18/5/1185 (6544 words)

	Search Results for adenohypophysis - Encyclopædia Britannica
		The pituitary gland (also called the hypophysis) is situated at the base of the brain.
		The gland itself is composed of three distinct lobes: the anterior lobe (also called the adenohypophysis), the...
		The arthropods are the largest and most advanced group of invertebrate animals, rivaling and often exceeding the evolutionary success of the vertebrates.
	www.britannica.com /search?query=adenohypophysis&submit=Find&source=MWTAB (237 words)

	The Role of D-Aspartic Acid and N-Methyl-D-Aspartic Acid in the Regulation of Prolactin Release -- D’Aniello et ...
		and NMDA (8.4 ± 1.2 nmol/g) occur in the adenohypophysis,
		significant increase in the concentration of NMDA in the adenohypophysis,
		The results are expressed as ng of PRL released in the medium from each mg of adenohypophysis incubated.
	endo.endojournals.org /cgi/content/full/141/10/3862 (5404 words)

	IngentaConnect Cysts in the Rat Adenohypophysis: Incidence and Histology (Site not responding. Last check: 2007-11-03)
		Cysts in the Rat Adenohypophysis: Incidence and Histology
		The incidence and histology of cysts in the adenohypophysis of adult male Wistar rats are reported.
		Histologic and immunohistochemical studies of the uninvolved areas of the adenohypophysis showed no abnormalities and the weights and histology of the adenohypophyses and peripheral endocrine glands were within normal range, suggesting that the cysts did not impair the adenohypophysial endocrine activity.
	www.ingentaconnect.com /content/hum/ep/2001/00000012/00000001/art00008 (263 words)

	Endocrine Pathology (Site not responding. Last check: 2007-11-03)
		The normal microscopic appearance of the adenohypophysis is shown here.
		The adenohypophysis contains three major cell types: acidophils, basophils, and chromophobes.
		The staining is variable, and to properly identify specific hormone secretion, immunohistochemical staining is necessary.
	www-medlib.med.utah.edu /WebPath/ENDOHTML/ENDO093.html (79 words)

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