the jagular vein is in the carotid triangle in the neck next to the vagus nerve and carotid artery.
From my research the jugular notch of the sternum is located at the suprior border of the manubrium (the upper portion of the sternum). It is also refered to as the 'supra sternal notch'.
It is a is the blood vessels in the neck.
The right and left external jugular veins drain supercicial scalp and face structures served by the external carotid arteries.
The neck ; see related link .