The deeper of the two jugular veins in the neck that drain blood from the head, brain, face and neck and convey it toward the heart.
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 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 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.
- Vein, large saphenous
The larger of the two saphenous veins, the principal veins that run up the leg superficially (near the surface). The large saphenous vein goes from the foot all the way up to the saphenous opening, an oval aperture in the broad fascia of the thigh, a fibrous membrane through which the vein passes. The other […]
- Vein, mesenteric
One of the large veins which return blood from the intestines. The inferior (lower) mesenteric vein empties into the splenic vein. The superior (upper) mesenteric vein then joins the splenic vein to create the portal vein which goes to the liver.
- Vein, portal
A large vein that carries blood from the stomach and the intestines to the liver. The portal vein is formed by the union of the splenic and superior mesenteric veins. It conveys venous blood to the liver for detoxification before the blood is returned to the circulation via the hepatic veins.
- Vein, pulmonary
One of four vessels that carry aerated blood from the lungs to the left atrium of the heart. (The four are the right and left superior and inferior pulmonary veins). The pulmonary veins are the only veins that carry bright red oxygenated blood.
- Vein, splenic
A vein that is formed by the union of several small veins draining blood from the stomach, pancreas and spleen. The splenic vein is a major contributor to the portal vein which goes to the liver.