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09:39

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[Development of the papillary designs of human fingers]

I S Guseva, V M Stambrovskaia, S D Bezzubik

    Arkhiv Anatomii, Gistologii I Embriologii
    |February 1, 1981
    PubMed

    Insights

    Fingerprint patterns in human fetuses develop sequentially, starting with the central pattern around 16-17 weeks and completing with delta formation by 22-24 weeks.

    Area of Science:

    • Developmental biology
    • Forensic science
    • Human anatomy

    Context:

    • Study examines the sequential development of epidermal friction ridge patterns (fingerprints) in human fetal hands.
    • Investigated 22 human embryos and fetuses aged 6 to 36 weeks.
    • Focuses on the distal phalanges of the fingers.

    Purpose:

    • To elucidate the chronological sequence of fingerprint pattern formation in human development.
    • To identify the specific developmental stages for the emergence of key fingerprint features, namely the central pattern and the delta.

    Summary:

    • Fingerprint pattern formation is a successive process.
    • The central pattern of the fingerprint emerges first, distinctly visible by 16-17 weeks of gestation.
    • The delta, a characteristic feature of fingerprint patterns, is fully formed by 22-24 weeks of gestation.

    Impact:

    • Provides a detailed timeline for fingerprint development in human fetuses.
    • Contributes to understanding the ontogeny of dermatoglyphics.
    • Potential applications in forensic science and developmental anomaly detection.

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