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Proximal End

Definition

The end nearest the scalp or body at collection when orientation is known. Hair formation, retention and shedding involve different structures and processes. Document orientation and recovered end condition where these affect examination.

Context
Hair biology

For example, a hair segment’s orientation must be documented before results along its length are related to a proposed growth history.

A proximal end is not automatically a viable root or proof of forceful removal. Morphology, keratinisation and DNA recovery require separate assessment.

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