This is due to the protrusion of the vertebral spinous processes.
Spinal column.
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
The T-bone as in "T-bone steak" is part of a vertebra.
Nucleus is in eukaryotes.It is the most distinct part
I will like to demonstrate the body of the lumber vertebra. I will simply put my finger on the body of the vertebra and say that this is body. This is pedicle. Then this is lamina. This is spine and and like wise. Then I will put the cervical and thoracic vertebrae for comparison. You will know the facts in no time. Even you write a book on the vertebrae, it will create confusion only. You can see the atlas of the anatomy if bones are not available.
Spinal column.
The centrum is a part of all the vertebra which make up the spine. It is the solid part in the centre of the vertebra. The plural of centrum is centra.
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
A 'Vertebra' is one bone in a spine. 'Vertebrae' (ver-tuh-bray) is a word for more than one vertebra, as in, "There are 12 vertebrae in the thoracic part of the spine." Or, "His second cervical vertebra was fractured".
body The most anterior part of the vertebra is the spinous process which comes off the body.
The body or centrum of the vertebra bears the most weight
All mammals have a vertebra, therefore are part of the 'Vertebrate' group.
lump-a bumps
Distinct is an adjective. "Rotten milk gives off a distinct odor."
The T-bone as in "T-bone steak" is part of a vertebra.
Thoracic Vertebra
Yes, just about any worn suspension bushing or other wearable part can cause that type of noise.