Proteoglycans - The Achilles Heel Of Tendons

Tendons connect bones to muscles so if you want to run during a football game or fight a Trojan War, they are important.   If you didn't understand the clever pun in the title, the only vulnerability of Achilles was his calcaneal tendon (tendo calcaneus), because when his mother Thetis dipped him into the magical river Styx to make him invincible, she held him by the heel. Naturally, it was his undoing.   So today that tendon of the posterior leg is called the Achilles tendon and a devastating weakness in an otherwise strong group or person is colloquially called the Achilles Heel (see Death Star - should we close that 2 meter port that leads to the fusion core?)  read more

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