The Vertebral Column and Spinal Cord Protection

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Name two functions of the spinal column.

The spinal column provides structure and flexibility to the body movement and supports the head as well as transfers the weight of the trunk and abdomen to the legs.

What are intervertebral discs and what is their composition?

Intervertebral discs are cartilaginous structures between adjacent vertebrae composed of annulus fibrosus and nucleus pulposus.

How much of the length of the vertebral column do intervertebral discs comprise?

Intervertebral discs comprise about 25% of the length of the vertebral column.

What is the function of the sympathetic trunk and splanchnic nerves?

The sympathetic trunk and splanchnic nerves make up the spinal nerves that emerge from the main cord at each vertebral level. They play a role in the autonomic nervous system.

When does the development of the human skeleton begin?

The development of the human skeleton begins soon after conception.

Test your knowledge of the vertebral column and its role in protecting the spinal cord and nerves. Take this quiz to learn more about the structure and function of the back and spinal canal.

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