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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%
Links: Quicktime | Quicktime version | Flash version | Endocrine - Adrenal Development | Endocrine Lecture
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