External jugular vein - wikipedia External jugular vein External jugular vein Veins of the head and neck. ( External jugular visible at center. ) Veins Details Drains from cranium, face Source posterior facial vein, posterior auricular vein, retromandibular vein, anterior jugular vein Drains to subclavian vein Identifiers Latin vena jugularis externa MeSH A07. 231.908. 498 Dorlands / Elsevier v_05 / 12850751 TA A12. 3.05. 045 FMA 13110 Anatomical terminology ( edit on Wikidata ) The external jugular vein receives the greater part of the blood from the exterior of the cranium and the deep parts of the face, being formed by the junction of the posterior division of the retromandibular vein with the posterior auricular vein. Contents 1 Structure 1.1 Valves 1.2 Variation 2 Function 3 Clinical significance 4 Additional images 5 See also 6 References 7 External links Structure It commences in the substance of the parotid gland, on a level with the angle of the mandible, and runs perpendicularly down the neck, in the direction of a line drawn from the angle of the mandible to the middle of the clavicle at the posterior border of the sternocleidomastoideus. In its course it crosses the sternocleidomastoideus obliquely, and in the subclavian triangle perforates the deep fascia, and ends in the subclavian vein lateral to or in front of the scalenus anterior, piercing the roof of the posterior triangle. It is separated from the sternocleidomastoideus by the investing layer of the deep cervical fascia, and is covered by the platysma, the superficial fascia, and the integument ; it crosses the cutaneous cervical nerve, and its upper half runs parallel with the great auricular nerve. Valves It is provided with two pairs of valves, the lower pair being placed at its entrance into the subclavian vein, the upper in most cases about 4 cm above the clavicle. The portion of vein between the two sets of valves is often dilated, and is termed the sinus. These valves do not prevent the regurgitation of the blood, or the passage of injection from below upward. Variation The external jugular vein varies in size, bearing an inverse proportion to the other veins of the neck, it is occasionally double. Function This vein receives the occipital occasionally, the posterior external jugular, and, near its termination, the transverse cervical, transverse scapular, and anterior jugular veins ; in the substance of the parotid, a large branch of communication from the internal jugular joins it. The external jugular vein drains into the subclavian vein lateral to the junction of the subclavian vein and the internal jugular vein. Clinical significance The external jugular is a large vein used in prehospital medicine for venous access when the EMT is unable to find another peripheral vein. It is commonly used in cardiac arrest or other situations where the patient is unresponsive due to the pain associated with the procedure. In a cardiac arrest using this vein has the advantage that the paramedic can stay at the head and intubate the patient as well. Although many EMTs and paramedics use this vein the American Heart Association still recommends the use of the cephalic vein. Additional images Muscles of the head, face, and neck. Section of the neck at about the level of the sixth cervical vertebra. The venæ cavæ and azygos veins, with their tributaries. See also Jugular vein Chronic cerebrospinal venous insufficiency References This article incorporates text in the public domain from the 20th edition of Gray 's Anatomy ( 1918 ) Jump up ^ Gray 's Anatomy of the Human Body Jump up ^ Snoj, Z ; Cvetko, E ( Mar 2013 ). `` A Case of Unilateral Fenestration and Duplication of the External Jugular Vein ''. Int. J. Morphol. 31 ( 1 ) : 107 -- 109. Retrieved September 1, 2015. External links Wikimedia Commons has media related to External jugular vein. lesson4 at The Anatomy Lesson by Wesley Norman ( Georgetown University ) ( parotid2 ) Veins of the head and neck External jugular Retromandibular maxillary pterygoid plexus superficial temporal anterior auricular Direct posterior auricular transverse cervical suprascapular anterior jugular jugular venous arch Internal jugular Diploic / brain Cerebral Superficial : superior superficial middle inferior inferior anastomotic ( Labbé ) superior anastomotic ( Trolard ) Deep : great internal basal deep middle superior thalamostriate Cerebellar superior inferior Sinuses To COS superior sagittal straight inferior sagittal occipital To CS sphenoparietal intercavernous superior ophthalmic ethmoidal central retinal nasofrontal vorticose veins inferior ophthalmic To IJV sigmoid : transverse petrosquamous superior petrosal inferior petrosal basilar plexus internal auditory veins condylar Facial / common facial frontal supraorbital angular superior labial inferior labial deep facial Direct lingual dorsal lingual deep lingual sublingual pharyngeal superior thyroid superior laryngeal middle thyroid Brachiocephalic Vertebral occipital occipital emissary suboccipital venous plexus deep cervical Direct inferior thyroid inferior laryngeal thymic Retrieved from `` https://en.wikipedia.org/w/index.php?title=External_jugular_vein&oldid=773876765 '' Categories : Wikipedia articles incorporating text from the 20th edition of Gray 's Anatomy ( 1918 ) Veins of the head and neck Hidden categories : Medicine infobox template using GraySubject or GrayPage Medicine infobox template using Dorlands parameter Talk Contents About Wikipedia Azərbaycanca Deutsch فارسی Français Italiano Latina 日本 語 Polski Português Русский Slovenčina Українська Edit links This page was last edited on 4 April 2017, at 23 : 11. 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Question: where does the external jugular vein drain into
Answer: the subclavian vein lateral to the junction of the subclavian vein and the internal jugular vein