Approximately 1% Of People Are Born With An Extra Rib

Known as a cervical rib, this additional rib grows from the base of the neck, near the seventh cervical vertebra. While often harmless, it can sometimes cause nerve or blood vessel compression, leading to medical issues like thoracic outlet syndrome.

Source

https://en.wikipedia.org/wiki/Cervical_rib

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Published: March 29, 2026
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Unusual Biology Human Body Weird Human Anatomy Cervical Rib Extra Rib Skeletal System Genetic Variation

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