logo Einloggen

Corpus: Internal jugular vein

1. Definition

The internal jugular vein is a major vein located in the head and neck region. It is the continuation of the sigmoid sinus and exits the cranial cavity through the posterior section of the jugular foramen.

2. Course

The internal jugular vein runs alongside the internal carotid artery and the vagus nerve, traveling from a dorsal to ventrolateral position as it descends towards the venous angle (angulus venosus) behind the sternoclavicular joint. At this point, it joins with the subclavian vein on its respective side to form the brachiocephalic vein.

Medially, the vein lies adjacent to the styloid process and travels in a medial-caudal direction. It is covered by the parotid gland and the sternocleidomastoid muscle. As it progresses, it is crossed by the posterior belly of the digastric muscle near the floor of the mouth and by the superior belly of the omohyoid muscle in the neck.

The internal jugular vein has two notable dilations along its course:

  • Superior bulb of internal jugular vein: This dilation occurs at the beginning of the vein, just after it exits the jugular foramen.
  • Inferior bulb of internal jugular vein: This dilation is found just behind the sternoclavicular joint.

3D model of the larynx and thyroid gland. The internal jugular vein is marked with the number 19.

3. Flows

The internal jugular vein collects venous blood from the brain, skull, face, and neck, corresponding to the areas supplied by the common carotid artery. Major veins draining into the internal jugular vein include:

4. Situs

5. Clinic

The internal jugular vein is commonly accessed in intensive care medicine for the insertion of a central venous catheter (CVC). This procedure is performed to monitor central venous pressure, administer medications, or deliver fluids directly into the central circulation. The internal jugular vein is often chosen for its relatively straight course to the superior vena cava and its consistent anatomical location, making it a reliable site for CVC placement.

6. Sources

Stichworte: Corpus, Head, Vein

Empfehlung

Shop News Jobs CME Flexa Piccer
NEU: Log dich ein, um Artikel in persönlichen Favoriten-Listen zu speichern.
A
A
A

Teilen Was zeigt hierher Versionsgeschichte Artikel erstellen Discord
Isabel Keller
DocCheck Team
Natascha van den Höfel
DocCheck Team
Dr. Frank Antwerpes
Arzt | Ärztin
Diese Funktion steht nur eingeloggten Abonnenten zur Verfügung
Letzter Edit:
12.08.2024, 09:43
39 Aufrufe
Nutzung: BY-NC-SA
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...