“…It runs parallel to the common carotid artery within the carotid sheath until it joins the subclavian vein deep to the sternal end of the clavicle. The IJVs constitute one of two main pathways for return of intracranial blood (Doepp et al, 2004;Gisolf et al, 2004) and, because of their constancy and relatively superficial position, are frequently used for central venous access by emergency physicians, cardiologists, oncologists, and nephrologists (Denys and Uretsky, 1991;Khatri and Espinosa, 1994;Gadallah et al, 1995;Lin et al, 1998;Work, 2001;O'Dwyer et al, 2005). In addition, the IJVs are important anatomical landmarks for radiologists and surgeons (Müller, 1991;Khatri and Espinosa, 1994;Williams, 1997;Lin et al, 1998;Cormio and Robertson, 2001;Mastronikolis et al, 2005).…”