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bulb of jugular vein

 

Definition: one of two dilated parts of the internal jugular vein, especially evident via contrast radiography (venography): (1) the superior bulb (Heister diverticulum) is a dilation at the beginning of the internal jugular vein in the jugular fossa of the temporal bone (bulbus superior venae jugularis [TA]); (2) the inferior bulb is a dilated portion of the vein just before it reaches the brachiocephalic vein (bulbus inferior venae jugularis [TA]).

Synonym(s): jugular bulb

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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