<prompt> Chassaignacs tubercle lies at level ofErbs pointStellate ganglionAtlasOdontoid process  <response>: The anterior tubercle of the transverse process of the sixth cervical veebra is the largest of all such processes and is called the carotid tubercle of Chassaignac. The common carotid aery can be best pressed against I this tubercle, deep to the anterior border of the I sternocleidomastoid muscle. Ref: BD Chaurasias HUMAN ANATOMY, Volume 3, 6th edition pg 300 