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
Kennedy (given name) popular. In 1990, the United States Census Bureau undertook a study of the 1990 United States Census, and released a sample of data concerning the most popular names. According to this sample of 6.3 million people (who had 5,494 unique first names), "Kennedy" did not even appear among the 4,275 feminine names, or the 1,219 masculine names. Kennedy (given name) Kennedy is a unisex given name in the English language. The name is an Anglicised form of a masculine given name in the Irish language. According to Patrick Hanks and Flavia Hodges, the given name "Kennedy" is an Anglicised form