spinal column


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Related to spinal column: skeletal system, vertebral column, scoliosis, vertebrae, Vertebræ

spinal column,

bony column forming the main structural support of the skeletonskeleton,
in anatomy, the stiff supportive framework of the body. The two basic types of skeleton found among animals are the exoskeleton and the endoskeleton. The shell of the clam is an exoskeleton composed primarily of calcium carbonate.
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 of humans and other vertebrates, also known as the vertebral column or backbone. It consists of segments known as vertebrae linked by intervertebral disks and held together by ligaments. In human beings, the spinal column of the child contains more vertebrae than the adult, in whom a number become fused into two immovable bones, the sacrum and the coccyx, forming the back of the pelvispelvis,
bony, basin-shaped structure that supports the organs of the lower abdomen. It receives the weight of the upper body and distributes it to the legs; it also forms the base for numerous muscle attachments.
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. The 24 movable vertebrae are the 7 cervical (neck), 12 thoracic (back of chest), and 5 lumbar (loin). The remaining vertebrae include 5 fused sacral, and between 3 and 5 fused caudal. Each vertebra has a somewhat cylindrical bony body (centrum), a number of winglike projections, and a bony arch. The bodies of the vertebrae form the strong but pliable supporting column of the skeleton. The arches are positioned so that the space they enclose is in effect a tube, the vertebral canal. It houses and protects the spinal cordspinal cord,
the part of the nervous system occupying the hollow interior (vertebral canal) of the series of vertebrae that form the spinal column, technically known as the vertebral column.
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, and within it the spinal fluid circulates. Ligaments and muscles are attached to various projections of the vertebrae. The 12 pairs of ribs that make up the front of the chest are linked to the thoracic vertebrae. The spine is subject to abnormal curvature, injury, infections, tumor formation, arthritic disorders, and puncture or slippage of the cartilage disks. Scoliosis is one relatively common disease which affects the spinal column. It involves moderate to severe lateral curvature of the spine, and, if not treated, may lead to serious deformities later in life.

spinal column

[′spīn·əl ‚käl·əm]
(anatomy)

spinal column

a series of contiguous or interconnecting bony or cartilaginous segments that surround and protect the spinal cord
References in periodicals archive ?
Modeling of the spinal column is a difficult task so that the literature mentions only a few attempts to fulfill it [18-20].
I may have to switch to cycling if the scan shows I do have a narrowing of the spinal column.
However, all those fossils are fragmentary, and no single specimen includes a complete spinal column, says Clack.
Because there are often more jumps and turns, says Marika Molnar, founder of Westside Dance Physical Therapy in New York, the gluteal muscles get more of a workout and the spinal column gets more compression from the high landings.
Flanking him on one side is an ancient, Moses-like figure, bare-chested, wearing a primitive skirt or loincloth with knee-high leather boots, and holding a white snake or spinal column in one hand as if to loose a plague on his enemies.
The rider, 35 today, was completing his final lot of the day and only doing a slow canter when he fell against a fence, suffering multiple injuries including damage to his spinal column.
The long-term efficacy of spinal column stimulation is poor in patients treated after failed back surgery.
Magnetic resonance imaging (MRI) detected multiple lesions involving the lower spinal column and acetabulum (figure 1).
But the family was living in Connecticut when, two days before Alexandra's first birthday, physicians found a growth on her spinal column.
It is attended by an unsteady gait (ataxia), speech impairment, lateral curvature of the spinal column, and peculiar swaying and irregular movements, with paralysis of the muscles, especially of the lower extremities.
This happens as the spinal column is freed up through specific and gentile adjustments.
Keyes left Oregon for Georgia Southern, a Division I-AA school, after UO doctors wouldn't clear him to play after two incidents in which Keyes temporarily lost feeling in his extremities, attributed to him having a narrower than normal spinal column.