<prompt> Chasaignac tubercle isErbs pointCarotid tubercle on C6 veebraFound on 1st ribMedial condyle of humerus  <response>: The anterior tubercle of the sixth cervical veebra is known as the carotid tubercle or Chassaignac tubercle. This separates the carotid aery from the veebral aery and the carotid aery can be massaged against this tubercle to relieve the symptoms of supraventicular tachycardia . The carotid tubercle is also used as a landmark for anasthesia of the brachial plexus and cervical plexus . Ref - pubmed.com 