C-1 (Atlas)
Lumbar vertebra has a block-like body and a short, stout spinous process.
Originexternal occipital protuberance, nuchal ligament, medial superior nuchal line, spinous processes of vertebrae C7-T12Insertionposterior border of the lateral third of the clavicle, acromion process, and spine of scapula
The dens or odontoid process.
Anywhere from 3 to 5 months..
The first cervical vertebra (C1) and the second cervical vertebra (C2) are atypical vertebrae due to the fact that the structures of these vertebrae are unlike the rest of the cervical spine vertebrae. The C1, also known as the atlas, is a ring-like structure which allows the beginning of the spinal cord to pass through form the base of the skull. The C2, also known as the axis, is the largest of the cervical vertebrae in vertical dimension as it contains an extension of bone called the odontoid process that extends up into the ring of the atlas. This area of the neck is the most freely moveable as the majority of side-to-side rotation occurs at C1 on C2 and is also most important neurologically as this area of the spinal cord controls heart, breathing and posture of the human being.
Cervical vertebrae have a bifurcated spinous process.
Atlas (C1) does not have a spinous process or body
Spinous process
the vertebral arch
You are feeling the spinous process of your vertebrae.
In the cervical spine, the C2-C6 vertebrae generally have bifid spinous proceses.
the transverse process and the articular process also spinous process
spinous process
spinous process and transverse process
spinous process, facets, and demifacets
Because the most distinctive characteristic of this vertebra is the existence of a long and prominent spinous process.
body The most anterior part of the vertebra is the spinous process which comes off the body.