Adrenal Medulla Development Movie: Difference between revisions

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<mediaplayer width='720' height='560' image="http://embryology.med.unsw.edu.au/embryology/images/b/b5/Adrenal_medulla.jpg">File:Adrenal medulla.mp4</mediaplayer>

Adrenal Medulla Development

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

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%

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

Links: MP4 version | Quicktime version | Endocrine - Adrenal Development | Endocrine Lecture

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.

Glossary Links: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Movies

Cite this page: Hill, M.A. (2024, April 16) Embryology Adrenal Medulla Development Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Adrenal_Medulla_Development_Movie

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+| <mediaplayer width='720' height='560' image="http://embryology.med.unsw.edu.au/embryology/images/b/b5/Adrenal_medulla.jpg">File:Adrenal medulla.mp4</mediaplayer>
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