Vein, jugular
The jugular veins are in the neck and drain blood from the head, brain, face and neck and convey it toward the heart. The external jugular vein collects most of the blood from the outside of the skull and the deep parts of the face. It lies outside the sternocleidomastoid muscle, passes down the neck and joins the subclavian vein. The internal jugular vein collects blood from the brain, the outside of the face and the neck. It runs down the inside of the neck outside the internal and common carotid arteries and unites with the subclavian vein to form the innominate vein. The jugular veins are particularly prominent during congestive heart failure. When the patient is sitting or in a semirecumbent position, the height of the jugular veins and their pulsations provides an estimate of the central venous pressure and gives important information about whether the heart is keeping up with the demands on it or is failing. The word "jugular" refers to the throat or neck. It derives from the Latin "jugulum" meaning throat or collarbone and the Latin "jugum" meaning yoke. To go for the jugular is to attack a vital part that is particularly vulnerable.

Medical dictionary. 2011.

Look at other dictionaries:

  • jugular vein — n. either of two large veins in the neck carrying blood back from the head to the heart * * * ▪ anatomy       any of several veins of the neck: (1) the external jugular veins, which receive blood from the neck, the outside of the cranium, and the …   Universalium

  • jugular fossa — n a depression on the basilar surface of the petrous portion of the temporal bone that contains a dilation of the internal jugular vein * * * fossa jugularis [TA] a prominent depression on the inferior surface of the petrous part of the temporal… …   Medical dictionary

  • Jugular — Ju gu*lar, a. [L. jugulum the collar bone, which joins together the shoulders and the breast, the throat, akin to jungere to yoke, to join: cf. F. jugulaire. See {Join}.] [1913 Webster] 1. (Anat.) (a) Of or pertaining to the throat or neck; as,… …   The Collaborative International Dictionary of English

  • jugular — [jug′yo͞o lər, jug′yələr; jo͞og′yo͞o lər, jo͞og′yə lər; ] often [ jug′lər] adj. [LL jugularis < L jugulum, collarbone, neck, throat, dim. of jugum, a YOKE] 1. of the neck or throat 2. of a jugular vein 3. Zool. of or having ventral fins in… …   English World dictionary

  • jugular vein — Jugular Ju gu*lar, n. [Cf. F. jugulaire. See {Jugular}, a.] [1913 Webster] 1. (Anat.) One of the large veins which return the blood from the head to the heart through two chief trunks, an external and an internal, on each side of the neck; called …   The Collaborative International Dictionary of English

  • jugular trunk — n either of two major lymph vessels that drain the head and neck: a) one on the right that empties into the right lymphatic duct or into the right subclavian vein where it joins the right internal jugular vein b) one on the left that empties into …   Medical dictionary

  • jugular foramen — n a large irregular opening from the posterior cranial fossa that is bounded anteriorly by the petrous part of the temporal bone and posteriorly by the jugular notch of the occipital bone and that transmits the inferior petrosal sinus, the… …   Medical dictionary

  • Jugular — Ju gu*lar, n. [Cf. F. jugulaire. See {Jugular}, a.] [1913 Webster] 1. (Anat.) One of the large veins which return the blood from the head to the heart through two chief trunks, an external and an internal, on each side of the neck; called also… …   The Collaborative International Dictionary of English

  • jugular vein — ► NOUN ▪ any of several large veins in the neck, carrying blood from the head …   English terms dictionary

  • jugular vein — n. either of two large veins in the neck carrying blood back from the head to the heart …   English World dictionary

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