Which vertebral joint has a bifid spinous process?
Cervical vertebrae
Cervical vertebrae have a small body, reflecting the fact that they carry the least amount of body weight. Cervical vertebrae usually have a bifid (Y-shaped) spinous process. The spinous processes of the C3–C6 vertebrae are short, but the spine of C7 is much longer.
What bone contains a bifid spine?
Cervical Vertebrae A typical cervical vertebra has a small body, a bifid spinous process, transverse processes that have a transverse foramen and are curved for spinal nerve passage.
What are the processes in a spine?
The spinous process protrudes where the laminae of the vertebral arch join and provides the point of attachment for muscles and ligaments of the spine. Spinous processes are the ridges that can be felt through the skin along the back of the spine.
Where is the bifid spinous process?
cervical vertebra
The spinous process of a typical cervical vertebra is short and bifid posteriorly. It is bifid because it develops from two separate secondary centers of ossification. This morphology is unique to cervical spinous processes.
Does c2 have a bifid spinous process?
The second cervical vertebra is the axis (Fig. The laminae of the axis are very well developed and blend into a bifid spinous process. Both transverse processes have a transverse foramen for the vertebral arteries. The superior articular facets of the axis articulate with the inferior articular facets of the atlas.
What are spinous processes?
Spinous process is a bony projection off the posterior (back) of each vertebra. The spinous process protrudes where the laminae of the vertebral arch join and provides the point of attachment for muscles and ligaments of the spine.
Does the vertebra Prominens have a bifid spinous process?
C7 possesses the standard cervical vertebral features but has some distinct features: spinous process ends in a rounded tubercle and is not bifid. C7 transverse foramina are small, and do not transmit the vertebral artery.
What is the unfused spinous process in spina bifida?
Unfused spinous process, which is really failure of fusion of the neural arch , is a relatively common anatomical variant and is part of the spectrum of spina bifida occulta . This should be differentiated from accessory ossicles of the spinous process, which appear after non-fusion of the secondary ossification center…
Why are the spinous processes of cervical vertebrae bifid?
First, they have a ‘bifid spinous process’. ‘Bifid’ means that the spinous process is divided into two ‘clefts’. This is an opening in the ‘transverse process’ that allows passage of a small artery called the ‘vertebral artery’. One may also ask, why are the spinous processes of cervical vertebrae bifid?
Where does the spinous process extend in the L5 vertebrae?
Extending posteriorly from the arch is the spinous process, which is considerably shorter and thicker in the L5 than it is in the other vertebrae. The spinous process anchors many muscles that work together to stabilize, laterally flex, rotate, and extend the trunk. Finally, extending superiorly and inferiorly on both sides…
What are the characteristics of a bifid vertebral artery?
They have two unique, identifying features. First, they have a ‘bifid spinous process’. ‘Bifid’ means that the spinous process is divided into two ‘clefts’. This is an opening in the ‘transverse process’ that allows passage of a small artery called the ‘vertebral artery’.