When it comes to the different parts of your spine, you have atlas and axis vertebrae. These two types of vertebrae have some distinct differences that can impact your health. Here, we’ll take a look at what those differences are and how they can affect you. Keep reading to learn more!
What is Atlas Vertebrae?
The Atlas vertebrae are the first cervical vertebra of the spine. It is relatively small and triangular in shape. The Atlas helps to support the head and allows for a wide range of head movements. It also connects with the dens, or rod-like structure, of the second cervical vertebrae. The Atlas is different from other vertebrae in that it has no body or spinous process. Instead, it consists of a large arch that supports the weight of the head. The Atlas is an important part of the spine and plays a vital role in supporting and protecting the brainstem.
What is Axis Vertebrae?
Axis vertebrae is the second vertebra of the spine. It is located at the base of the neck and articulates with the atlas, the first vertebra of the spine. Axis vertebrae also has a protrusion called the odontoid process, which projects upward from the body of the vertebra and fits into a depression on the underside of the atlas. This articulation allows for a great deal of movement between the two vertebrae, allowing us to turn our heads from side to side. Axis vertebrae derives its name from its unique position in the spine – it is located at the axis around which the rest of the spine rotates. Axis vertebrae plays an important role in protecting the spinal cord and providing support for the head.
Differences between Atlas and Axis Vertebrae
There are many differences between Atlas and Axis vertebrae. Atlas is the topmost vertebra, and it rests on the odontoid process of the Axis. Atlas has a much flatter surface than Axis, and it lacks the bony ridge that runs along the front of Axis. In addition, Atlas has a large foramen transversarium, while Axis has a much smaller one. Atlas also has two distinct articular facets, while Axis only has one.
Finally, Atlas vertebrae tend to be considerably larger than Axis vertebrae. These anatomical differences are due to the different functions of these two types of vertebrae. Atlas helps to support the head, while Axis allows for rotation of the head and neck. As a result, Atlas vertebrae are typically more robust, while Axis vertebrae are more agile.
Conclusion
The atlas vertebrae is the first cervical vertebra and it supports the head. The axis vertebrae is the second cervical vertebra and it allows for movement of the head. These two bones are important for understanding neck pain as well as other conditions that can affect the spine.
