The present invention relates to an artificial intervertebral disc having elastic force, and provided is an artificial intervertebral disc having elastic force which can be inserted between adjacent vertebrae and which comprises: a lower plate which is engaged with the lower vertebra and provides elastic force to the upper vertebra; and an upper plate which is placed on an upper part of the lower plate and is engaged with the upper vertebra so as to be rotatable in the left and right directions within a predetermined angle range according to the rotation of the upper vertebra.
The present invention relates to a girder back support for a chair in which a girder back, which is vertical with respect to the horizontal axis at the rear of a seat board of the chair and supports the spine, is formed to support and correspond to the vertebrae only.
For a rib roast make sure the backbone or vertebrae are cut out so you will have no trouble later slicing the meat, but leave the ribs standing in the meat.
In 1919, British paleontologist D. M. S. Watson proposed that the evolutionary history of these large amphibians could be seen through changes in their vertebrae.
Studies of bone abnormalities in skeletons from ancient Syria have led paleontologists to conclude that operating similar querns caused young women repetitive stress injuries —notched kneecaps, damage to the last dorsal vertebra, and severe osteoarthritis in the big toe.
Between each pair of vertebrae, there is a small opening through which a bundle of nerves, called a nerve root, leaves the canal, one bundle on either side.