The axis has a dens, which provides a pivot for the atlas.
thoracic vertebrae has dens
2nd cervical vertebra
a dens
The dens is found on the second cervical vertebra only.
There is rotation of head around the dens of the axis. Dens is actually derived from the body of the atlas vertebra.
Atlaswrong . the correct answer is axis (http://en.wikipedia.org/wiki/Axis_(anatomy)) "It forms the pivot upon which the first cervical vertebra (the atlas), which carries the head, rotates."
Dens (anatomy): Dens is part of the neck, and is a bone (animal): A lair where wild animals house in (room): part of a house which is smaller than, but similar to the living room
Since the dens is part of the Axis vertebra (and project up in the first vertebra, the Atlas vertebra that supports the skull) it is called the Dens Axis
2nd cervical vertebra (axis) has dens (also called odontoid process).
a dens
The dens is found on the second cervical vertebra only.
There is rotation of head around the dens of the axis. Dens is actually derived from the body of the atlas vertebra.
around the dens of the second vertebra. Is that is the full question?
densThe Dens of the second Vertebrae.
An anterior, vertical projection on the axis vertebra. Only C2 has this structure.
dens
The name of the second vertebrae is called the axis.
Pivot means to turn. A pivot joint turns around a ring. The best example is the ring of bone that the atlas vertebra makes and the "finger" of the dens vertebra. The joint allows us to turn our heads. The atlas holds the head. In mythology Atlas held the world on his shoulders. The dens is called this because it has a "tooth" like structure. (dens as in dental).
Atlaswrong . the correct answer is axis (http://en.wikipedia.org/wiki/Axis_(anatomy)) "It forms the pivot upon which the first cervical vertebra (the atlas), which carries the head, rotates."