From "Information Graphics" by Sandra Rendgen (via Brain Pickings) -- 'Two Mindsets,' Stanford, magazine article, Data Source: Carol Dweck: 'Mindset: The New Psychology of Success', Design: Nigel Holmes
The main weight of the body is carried by the lumbar vertebral bodies and disks. The lamina, facets and spinous process are major parts of the posterior elements that help guide the movement of the vertebrae and protect the spinal nerves.
The carotid arteries transfer to structures outside and inside the skull. The external carotid carries blood to structures outside the skull, primarily the face. The internal carotid carries blood to structures inside the skull, such as the brain.