The spinal cord is responsible for sending messages between your brain and muscles ... or surgery for your lumbar spine. Understanding the basic anatomy of the five lumbar bones that make up ...

Evidence for this function first came from studies of the organ's anatomy and its nerves as well ... intensifying weak light. The small brain occupies only about 1.5 percent of the braincase ...

They create a cushion between the brain and the cranium (skull) and the spinal cord and the vertebrae (spine). The meninges also provide structural support for important blood vessels and nerves ...