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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaBody system

This smooth tissue covers bone ends at a synovial joint, reducing friction.

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Your new ahaArticular cartilage

Articular cartilage covers the ends of bones at many joints. Source: Articular cartilage ↗

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More from Human Body

A few more worth knowing.

  1. 52This pigment supplies much of the colour in human skin, hair and eyes.RECALL
    Melanin

    It also helps absorb ultraviolet radiation

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  2. 53These projections at the boundary between dermis and epidermis help form fingerprint ridges.RECALL
    Dermal papillae

    Their patterns form before birth

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  3. 54This valve lies between the left atrium and ventricle.RECALL
    Mitral valve

    Also called the bicuspid valve

    Open this card ↗