File:Pineal histology 001.jpg

From Embryology

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Pineal Histology

  • Pinealocytes - produce and secrete melatonin.
  • Astrocytes - glial cells (contain glial fibrillary acidic protein, GFAP) may play a role in modulation of pineal indoleamines and norepinephrine.
    • Human and sheep astrocytes - form arrangements of processes around the pinealocytes (sheep form a specialised "basket-like" arrangement). Fibres in human and sheep pineals may be derived from both intra- and extra glandular sites. Fibre arrangement and origins differ for rodents. PMID 3897467

Pineal gland, sheep H&E, pinealocytes

Pineal Links: labeled image | unlabelled image | Pineal Development

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 20) Embryology Pineal histology 001.jpg. Retrieved from

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G


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