Final answer:
The cervical section of the vertebral column contains seven vertebrae (C1-C7), each with unique features to support the head and protect the spinal cord.
Step-by-step explanation:
The cervical section of the vertebral column comprises seven vertebrae, known as C1 through C7. These vertebrae are significant as they support the skull, enable a range of head movements, and protect the cervical part of the spinal cord. Every cervical vertebra has specific anatomical features such as a small body size, a bifid spinous process, and transverse foramina that serve as passageways for arteries and nerves. The C1 vertebra, also called the atlas, articulates with the occipital condyles of the skull, while the C7 is most prominent and easily felt at the base of the neck. Interestingly, almost all mammals, including humans and giraffes, possess seven cervical vertebrae regardless of the overall size differences.
Final answer: There are seven vertebrae in the cervical section of the human vertebral column, providing key structural support and flexibility to the neck.
In summary, the cervical section consists of seven vertebrae characterized by their unique shape and junctions, allowing for the passage of nervous and vascular structures while supporting the head's movements.