How many vertebrae are in the cervical segment of the spine?

The cervical segment of the spine consists of seven vertebrae, known as C1 to C7. This part of the spine is located at the neck region and is crucial for supporting the head, allowing for a range of motions such as rotation, flexion, and extension. Moreover, the cervical vertebrae protect the spinal cord while providing the necessary structures for muscle attachment and movement of the head and neck.

Anatomically, each cervical vertebra has specific features, such as transverse foramina, which allow for the passage of arteries and veins that supply blood to the brain. The first cervical vertebra, known as the atlas, uniquely supports the skull, while the second, the axis, allows for rotation of the head. Understanding the number and function of cervical vertebrae is essential in Pilates practice, as it helps in recognizing the importance of spinal alignment and movements that involve the neck. Therefore, recognizing that there are seven cervical vertebrae is fundamental in both anatomy and practical application in Pilates training.