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EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
Content
All in Vivo Cells > Cell Card
Hair
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Hair Shaft
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Fetal Medulla Cells (HS)


Hair.HS.FMdCs
Fetal Medulla Cells form the central layer of the hair shaft, where the number of medulla cell columns defines the thickness of the hair. In mice, zig-zag hair has a single column, guard hair – two columns, and awl hair – 2-3 columns of medulla cells.

Bulbous peg stage (stages 6-8).
Prenatal - Postnatal
Fetal Medulla Cells
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent