Spinal column
the spinal column (lat.: Columna vertebralis) is the trunk basic design feature of the vertebrate animals, among which also humans rank.
With humans the spinal column consists of 33-34 eddy bones (lat.: Vertebrae) and the intermediate eddy disks (volume disks), lying between them. These structures are stabilized by volume connections and the small eddy joints.
The organization of the eddies into 7 neck (Cervicalwirbel), 12 chest (Thorakalwirbel) and 5 Lendenwirbel (Lumbalwirbel), the Sacrum (5 Sacralwirbel)and the Coccygis (steissbein, 4-5 Steissbeinwirbel) the partitioning of the spinal column in neck ( HWS), chest ( BWS) and Lendenwirbelsäule ( LWS) causes. (This organization applies to all mammals from the mouse to the giraffe.) the 5 eddies of the Kreuzbeins (Sacrum) are likewiseas the 4 rudimentary tail eddies of the steissbeins (Coccygis) merged and are therefore called often also wrong eddies with one another. Tail-basic vertebrate animals possess a differently large number of further tail eddies.
The spinal column of the adult is doubly s-förmig curved in the sagittal plane, so thatit as a springy staff above all upright going humans to a flexible course picture with help. The forward convex curvature in the neck and lumbar region is called lord eye, to the rear convex curvature in the chest and Sakralbereich as Kyphose.
An eddy consists that of Wirbelköper with reason and cover plate, of to the rear laterally arranged elbow roots, the eddy elbow and the thorn extension lain to the rear as well as upward in pairs and, interlinking joint extensions arranged down and laterally on the left and on the rightarranged transverse extensions, which within the chest range joint surfaces possess, to which the ribs set.
The opening of the eddy bones lain central forms the eddy channel, which offers therein lying back Mark and its skins the protection. This hands first neck nerves from the outlet toto the so-called.Conus medullaris, that with the adult at height of the 1. Lendenwirbels ends. The peripheral nerves withdraw by the lateral eddy holes of the spinal column.
Heavy injuries of the spinal column, with which back Mark is damaged, lead to the cross section syndrome.
Thosemost frequent illnesses are: Degenerative changes of the function group from volume disk and the two adjacent eddies, instabilities up to the eddy sliding (Spondylolisthesis), rheumatism tables form circle associated inflammatory illnesses (for instance Bechterew) as well as the Tuberkulose and other infections.
see also
- volume disk incident
- Choir cathedral - Geschwulste at the eddy acid
- Skoliose
- Cervicobrachialsyndrom, a pain condition, that of the neck spinal column goes out and into the arm irradiates
Web on the left of
- www.quarks.de/.. - Science transmission Quarks&Co: The agony with the back - which carries the spinal column
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