File:Pituitary histology 003.jpg: Difference between revisions
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==Pituitary Histology - Neurohypophysis== | ==Pituitary Histology - Neurohypophysis== | ||
Stain - PAAB / [[Histology_Stains#Periodic acid-Schiff|Periodic acid-Schiff]] / [[Histology_Stains#Orange G|Orange G]] | |||
Neurohypophysis (posterior pituitary) | |||
* cells are pituicytes and also present are hypothalamic neurosecretory cell unmyelinated nerve fibres (from the supraoptic and paraventricular nuclei). | |||
* pituicyte oval or round nuclei are visible. | |||
* '''Herring bodies''' are dilations of nerve fibres filled with small neurosecretory vesicles. | |||
** nerve fibres terminate close to capillaries. | |||
* hormones are releasing and release-inhibiting factors produced regulating adenohypophysis activity (as well as 2 other 9 aa hormones). | |||
** Oxytocin - pregnancy stimulates uterine smooth muscle the contraction and lactation milk ejection reflex. | |||
** Antidiuretic hormone - (ADH, vasopressin, arginine vasopressin, AVP) acts on kidneys to concentrate urine (water retention). | |||
Identify nuclei of pituicytes and Herring bodies. | Identify nuclei of pituicytes and Herring bodies. | ||
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{{Pituitary Histology}} | {{Pituitary Histology}} | ||
Pituitary, sheep - PAAB/PAS/Orange G | |||
{{Template:Blue Histology}} | {{Template:Blue Histology}} | ||
Latest revision as of 12:40, 17 July 2015
Pituitary Histology - Neurohypophysis
Stain - PAAB / Periodic acid-Schiff / Orange G Neurohypophysis (posterior pituitary)
- cells are pituicytes and also present are hypothalamic neurosecretory cell unmyelinated nerve fibres (from the supraoptic and paraventricular nuclei).
- pituicyte oval or round nuclei are visible.
- Herring bodies are dilations of nerve fibres filled with small neurosecretory vesicles.
- nerve fibres terminate close to capillaries.
- hormones are releasing and release-inhibiting factors produced regulating adenohypophysis activity (as well as 2 other 9 aa hormones).
- Oxytocin - pregnancy stimulates uterine smooth muscle the contraction and lactation milk ejection reflex.
- Antidiuretic hormone - (ADH, vasopressin, arginine vasopressin, AVP) acts on kidneys to concentrate urine (water retention).
Identify nuclei of pituicytes and Herring bodies.
- Pituitary Histology: Pituitary overview | Anterior H&E | Anterior H&E | Anterior labeled | PAS/O Overview | Acidophils | Basophils | Posterior labeled | Posterior unlabeled | Histology Stains | BGD - Endocrine Histology | Pituitary Development
Pituitary, sheep - PAAB/PAS/Orange G
Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.
Cite this page: Hill, M.A. (2024, May 21) Embryology Pituitary histology 003.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Pituitary_histology_003.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
Original File Name: Hyn40pp.jpg
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 16:53, 12 May 2012 |  | 450 × 600 (94 KB) | Z8600021 (talk | contribs) | larger image |
| 13:26, 5 October 2009 |  | 300 × 400 (59 KB) | S8600021 (talk | contribs) | Hyn40pp.jpg |
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