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25.09.2012

Anatomy of the neck bones, started working out and not losing weight - How to DIY

Author: admin
Knowing the main parts of your neck and how these parts work is important as you learn to care for your neck problem. A bony knob projects out at the point where the two lamina bones join together at the back of the spine.
Each vertebra in the spine has two bony knobs that point out to the side, one on the left and one on the right.
The hollow tube formed by the bony ring on the back of the spinal column surrounds the spinal cord as it passes through the spine. A special type of structure in the spine called an intervertebral disc is also made of connective tissue.
The anterior cervical area is covered with muscles that run from the rib cage and collar bone to the cervical vertebrae, jaw, and skull. A good way to understand the anatomy of the cervical spine is by looking at a spinal segment.
The main section of each cervical vertebra, from C2 to C7, is formed by a round block of bone, called the vertebral body. These projections, called spinous processes, can be felt as you rub your fingers up and down the back of your spine. These joints connect the vertebrae together in a chain but slide against one another to allow the neck to move in many directions.
Two large nerves branch off the spinal cord from each vertebra, one on the left and one on the right.


The posterior cervical muscles cover the bones along the back of the spine and make up the bulk of the tissues on the back of the neck. Each spinal segment includes two vertebrae separated by an intervertebral disc, the nerves that leave the spinal cord at each vertebra, and the small facet joints that link each level of the spinal column.
Understanding the regions and structures of the neck can help you be more involved in your health care and better able to care for your neck problem. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
The opening is large because the spinal cord is wider where it first exits the brain and skull. Except for the very top and bottom of the spinal column, each vertebra has two facet joints on each side. Just as the skull protects the brain, the bones of the spinal column protect the spinal cord. The cervical spine curves slightly inward and ends where C7 joins the top of the thoracic spine (the chest area). Compared to other vertebrae, the atlas also has much wider bony projections pointing out to each side. At the base of the neck where the cervical and thoracic spines join together, you'll feel another large spinous process. Unlike the rest of the spine, the neck vertebrae have a hole that passes down through each transverse process.


The ones on top connect to the vertebra above; the ones below join with the vertebra below.
These spinal nerves group together to form the main nerves that go to the limbs and organs.
The nucleus is held in place by the annulus, a series of strong ligament rings surrounding it. It also protects the spine during heavy activities that put strong force on the spine, such as jumping, running, and lifting. This hole, called the transverse foramen, provides a passageway for arteries that run up each side of the neck to supply the back of the brain with blood. Bone spurs that form on the facet joint can project into the tunnel, narrowing the hole and pinching the nerve.
The ligamentum flavum is a long elastic band that connects to the front surface of the lamina bones. When the vertebrae are stacked on top of each other, the bony rings form a hollow tube that surrounds the spinal cord.



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