Quicktime Development Animation - Adrenal Medulla: Difference between revisions

Latest revision as of 15:12, 16 March 2013

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Adrenal Medulla Development Movie

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Adrenal Medulla Development

This animation shows the dual embryonic origins of the adrenal development.

Adrenal Cortex

mesothelium origin, epithelium lining the body cavity at the site of adrenal development
Late Fetal Period - differentiates to form cortical zones
Birth - zona glomerulosa, zona fasiculata present
Year 3 - zona reticularis present

Adrenal Medulla

neural crest origin, migrate adjacent to coelomic cavity, initially uncapsulated and not surrounded by fetal cortex, cells have neuron-like morphology
2 cell types - secrete epinepherine (adrenaline) 80%; secrete norepinepherine (noradrenaline* 20%

Medulla

Neural crest cells migrate toward the coelomic cavity wall and form the adrenal medulla. These chromaffin (chromaphil) cells originally named because of their staining (yellow) with chromium salts.

Cortex

Week 4 celomic epithelium (mesothelium) cells proliferate initially forming small buds that separate from the epithelium.

Week 6 these now mesenchymal cells first form the fetal adrenal cortex which will be later replaced by the adult cortex.

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+#REDIRECT [[Adrenal_Medulla_Development_Movie]]
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 * 2 cell types - secrete epinepherine (adrenaline) 80%; secrete norepinepherine (noradrenaline* 20%
-'''Links:''' [[Media:Adrenal_medulla.mov‎|Quicktime]] | [[Quicktime Development Animation - Adrenal Medulla|Quicktime version]]
 |}
-{{Quicktime}}
+===Medulla===
-[[Category:Endocrine]] [[Category:Adrenal]]
+Neural crest cells migrate toward the coelomic cavity wall and form the adrenal medulla. These chromaffin (chromaphil) cells originally named because of their staining (yellow) with chromium salts.
+===Cortex===
+Week 4 celomic epithelium (mesothelium) cells proliferate initially forming small buds that separate from the epithelium.
-* Fetal Adrenals - fetal cortex later replaced by adult cortex
+Week 6 these now mesenchymal cells first form the fetal adrenal cortex which will be later replaced by the adult cortex.
-* Week 6 - fetal cortex, from mesothelium adjacent to dorsal mesentery; Medulla, neural crest cells from adjacent sympathetic ganglia
-* Adult cortex - mesothelium mesenchyme encloses fetal cortex