Vertebra prominens: Difference between revisions
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#REDIRECT [[Cervical vertebrae#Vertebra prominens]] |
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{{Infobox Bone | |
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Name = {{PAGENAME}} | |
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Latin = | |
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GraySubject = 21 | |
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GrayPage = 101 | |
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Image = Gray89.png | |
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Caption = Seventh cervical vertebra | |
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MusclesOrigins = | |
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MusclesInsertions = | |
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Articulations = | |
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MeshName = | |
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MeshNumber = | |
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DorlandsPre = v_07 | |
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DorlandsSuf = 12854570 | |
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}} |
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'''Vertebra prominens''' is the proper name for the seventh [[cervical vertebra]]. The most distinctive characteristic of this vertebra is the existence of a long and prominent spinous process which is palpable from the skin surface, hence the name. This spinous process is thick, nearly horizontal in direction, not bifurcated, but terminating in a tubercle to which the lower end of the ''[[ligamentum nuchae]]'' is attached. |
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{{R from merge}} |
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The seventh cervical vertebra (C7) has the most prominent spinous process only in about 70% of people; in the remainder, either C6 or T1 (the first thoracic vertebra) will be the most prominent. |
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{{Authority control}} |
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The transverse processes are of considerable size, their posterior roots are large and prominent, while the anterior are small and faintly marked; |
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the upper surface of each has usually a shallow sulcus for the eighth [[spinal nerve]], and its extremity seldom presents more than a trace of bifurcation. |
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The ''[[foramen transversarium]]'' may be as large as that in the other cervical vertebrae, but is generally smaller on one or both sides; |
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occasionally it is double, sometimes it is absent. |
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On the left side it occasionally gives passage to the [[vertebral artery]]; |
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more frequently the [[vertebral vein]] traverses it on both sides; |
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but the usual arrangement is for both [[artery]] and [[vein]] to pass in front of the transverse process, and not through the foramen. |
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Sometimes the anterior root of the transverse process attains a large size and exists as a separate bone, which is known as a [[cervical rib]].==Additional images== |
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<gallery> |
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Image:Gray_111_-_Vertebral_column-coloured.png|Vertebral column. |
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</gallery> |
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==External links== |
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* {{GPnotebook|-40239044}} |
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{{Gray's}} |
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{{Spine}} |
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[[Category:Bones of the torso]] |
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[[pl:Kręg wystający]] |
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Latest revision as of 15:10, 14 July 2021
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