Jugular sinus | definition of jugular sinus by Medical dictionary
jug·u·lar si·nus , sinus jugularis
one of three enlargements of the jugular veins; the external jugular sinus is between the two sets of valves; the internal jugular sinuses are at the origin (superior bulb) and near the termination (inferior bulb).
References in periodicals archive
demonstrated in their study, cardiac venous pulsation from the dominant vein can strike the jugular sinus
and cause expansion of the jugular bulb.