Ridge formation window
The period from approximately gestational weeks 10 to 17 during which friction ridges form by epidermal thickening and proliferation, propagating outward from the centre of the volar pad. Configuration is complete by week 24.
The period from approximately gestational weeks 10 to 17 during which friction ridges form by epidermal thickening and proliferation, propagating outward from the centre of the volar pad. Configuration is complete by week 24.
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