Vertebral column and sacral curvatures) form during fetal development. The secondary curves develop after birth. The cervical curvature forms as a result of lifting the head and the lumbar curvature forms as a result of walking. The vertebral column surrounds the spinal cord which travels within the spinal canal, formed from a central hole within each vertebra. The spinal cord is part of the central nervous system that supplies nerves and receives information from the peripheral nervous system within the body. The spinal cord consists of grey and white matter and a central cavity, the central canal. Adjacent to each vertebra emerge
Ingrid (given name) Ingrid (given name) Ingrid is a Scandinavian, German, and Dutch feminine given name. It continues the Old Norse name "Ingiríðr", which was a short form of "Ingfríðr", composed of the theonym "Ing" and the element "fríðr" "beloved; beautiful" common in Germanic feminine given names. The name Ingrid (more rarely in the variant "Ingerid" or "Ingfrid"; short forms "Inga, Inger, Ingri") remains widely given in all of Scandinavia, with the highest frequency in Norway. Norwegian usage peaked in the interbellum period, with more than 2% of newly born girls so named in 1920; popularity declined gradually over the 1930s to 1960s,