In the posterior midline of the vertebral arch, the ____________ projects posteriorly from the right and...

In the posterior midline of the vertebral arch, the ____________ projects posteriorly from the right and left laminae.

Expert Solution

There are seven processes.

The correct answer is spinous process. It projects posteriorly from right and left laminae.

The vertebral arch forms the posterior portion of each vertebra. It consists of four parts, the right and left pedicles and the right and left laminae. Each pedicle forms one of the lateral sides of the vertebral arch. The pedicles are anchored to the posterior side of the vertebral body. Each lamina forms part of the posterior roof of the vertebral arch.

Seven processes arise from the vertebral arch. Each paired transverse process projects laterally and arises from the junction point between the pedicle and lamina. The single spinous process (vertebral spine) projects posteriorly at the midline of the back. The transverse and spinous processes serve as important muscle attachment sites. A superior articular process extends or faces upward, and an inferior articular process faces or projects downward on each side of a vertebrae.

Sydney Mullin answered 2 years ago

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