D. i.e. (C6 - vertebra ) (444 - Grey 14th)The bifurcation of the common carotid artery in to the internal and external carotid arteries can be palpated just beneath the anterior border of sterno cleidomastoid muscle at the level of the superior border of the thyroid cartilage. This is a convenient site to take the carotid pulse (748- Snell 8th) (C3 - C4 junction)The artery may be compressed against the prominent transverse process of the sixth cervical vertebra (chassaignac's tubercle) and above this level it is superficial and its pulsation can be easily fet (444 - Gray - anatomy 14th)* Best radiographic view for fracture of Cl C2 vertebra is odontoid view*** C7 has longest spinous process*** Subclavian Artery in patients with upper limb hemorrhage - compressed against the upper surface of the fist rib (third part of subclavian artery