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
Kira (given name) Kira (given name) Kira is a mostly feminine name of multiple origins and meanings. The feminine form is pronounced or . It might be a feminine form of the name Kiran, pronounced . Kiran is of Hindi and Sanskrit origin, meaning "beam of light". Besides Sanskrit, there might be other etymologies from Egyptian, where the word Ki-Ra means "like Ra", or Persian. Due to the Greek interpretation of the Persian king's name Kourosh (کوروش, "Kūrosh") as Κύρος ("Kýros") – which was obviously modeled after the Greek word κύριος ("kýrios" "lord"), the feminine form being κυρία ("kyría") – Kyra (or Kira)