Superior vena cava: Difference between revisions
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No [[valve]] separates the superior vena cava from the right atrium. As a result, the (right) atrial and (right) ventricular contractions are conducted up into the [[internal jugular vein]] and, through the [[sternocleidomastoid muscle]], can be seen as the [[jugular venous pressure]]. In [[tricuspid valve]] [[Tricuspid insufficiency|regurgitation]], these pulsations are very strong. |
No [[valve]] separates the superior vena cava from the right atrium. As a result, the (right) atrial and (right) ventricular contractions are conducted up into the [[internal jugular vein]] and, through the [[sternocleidomastoid muscle]], can be seen as the [[jugular venous pressure]]. In [[tricuspid valve]] [[Tricuspid insufficiency|regurgitation]], these pulsations are very strong. |
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==Additional images== |
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hhsfy y gtsdfyu sdvuejhd tsd6yrtdf uyasdr ysdauygsyg yya gdg fugdugu bg uydsa gdfs dsgdsy dsh ghsd gfdugsdayu uyguydshgdf sdfgdys hdsgahds gdbhusdbhusd gu gsdysduyg sdfgsdfbkuy sdfvyrguy gbsriujsgsdf gjksdfbjghdfjhsfb gsf ghsd hsduf jnf bfgufbf jngfashsfg fds buy dftuyf gfbhus dfguyasdbdasahsdugsdfughsdf sdfhug dgahsdufg dsuy gghug sdgsduytfvsdjh gdftuya uk gabsdviuyf sdfitiurtvsd98f gisdfa iuytdsituyds bguyhsdtsdg iurgy7dufbg jhh78f6xczv bisdufyg7fty 7fhgh78fy g7dfhsb iufy78sdyhfsdn tsduy gjfbjugfu78iugdf dfgtyfhygfbnfgdhbfduigfhb fdiuhdfsughfiu ufdughu uf gdufhufghiusdhisofh uf fsiufdhfgdhndfiughfbn ugdftygf fgiugdfb gdfjgdf hgdfbhfdj hetfidus bg78y ijbh ghdfbuy eghre tr ihughdf |
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<gallery> |
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Image:Gray480.png|Diagram showing completion of development of the parietal veins. |
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Image:Gray490.png|Front view of heart and lungs. |
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Image:Gray494.png|Heart seen from above. |
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</gallery> |
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<gallery> |
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Image:Gray503.png|Transverse section of thorax, showing relations of pulmonary artery. |
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Image:Gray505.png|The arch of the aorta, and its branches. |
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Image:Gray577.png|The [[brachiocephalic vein]]s, '''superior vena cava''', [[inferior vena cava]], [[azygos vein]] and their tributaries |
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Image:Gray1178.png|The thymus of a full-time fetus, exposed in situ. |
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</gallery> |
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==See also== |
==See also== |
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Revision as of 12:47, 17 September 2009
| Superior vena cava | |
|---|---|
 Veins | |
| Details | |
| Precursor | common cardinal veins |
| Source | brachiocephalic vein, azygous vein |
| Identifiers | |
| Latin | v. cava superior |
| MeSH | D014683 |
| TA98 | A12.3.03.001 |
| TA2 | 4745 |
| FMA | 4720 |
| Anatomical terminology | |
The superior vena cava is a large, yet short vein that carries deoxygenated blood from the upper half of the body to the heart's right atrium.
It is formed by the left and right brachiocephalic veins, (also referred to as the innominate veins) which also receive blood from the upper limbs and the head and neck, behind the lower border of the first right costal cartilage. The azygous vein (which receives blood from the rib cage) joins it just before it enters the right atrium, at the upper right front portion of the heart. It is also known as the cranial vena cava in animals.
No valve separates the superior vena cava from the right atrium. As a result, the (right) atrial and (right) ventricular contractions are conducted up into the internal jugular vein and, through the sternocleidomastoid muscle, can be seen as the jugular venous pressure. In tricuspid valve regurgitation, these pulsations are very strong.
hhsfy y gtsdfyu sdvuejhd tsd6yrtdf uyasdr ysdauygsyg yya gdg fugdugu bg uydsa gdfs dsgdsy dsh ghsd gfdugsdayu uyguydshgdf sdfgdys hdsgahds gdbhusdbhusd gu gsdysduyg sdfgsdfbkuy sdfvyrguy gbsriujsgsdf gjksdfbjghdfjhsfb gsf ghsd hsduf jnf bfgufbf jngfashsfg fds buy dftuyf gfbhus dfguyasdbdasahsdugsdfughsdf sdfhug dgahsdufg dsuy gghug sdgsduytfvsdjh gdftuya uk gabsdviuyf sdfitiurtvsd98f gisdfa iuytdsituyds bguyhsdtsdg iurgy7dufbg jhh78f6xczv bisdufyg7fty 7fhgh78fy g7dfhsb iufy78sdyhfsdn tsduy gjfbjugfu78iugdf dfgtyfhygfbnfgdhbfduigfhb fdiuhdfsughfiu ufdughu uf gdufhufghiusdhisofh uf fsiufdhfgdhndfiughfbn ugdftygf fgiugdfb gdfjgdf hgdfbhfdj hetfidus bg78y ijbh ghdfbuy eghre tr ihughdf
See also
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