Vertebral column spinal nerves. The spinal nerves provide sympathetic nervous supply to the body, with nerves emerging forming the sympathetic trunk and the splanchnic nerves. The spinal canal follows the different curves of the column; it is large and triangular in those parts of the column which enjoy the greatest freedom of movement, such as the cervical and lumbar regions; and is small and rounded in the thoracic region, where motion is more limited. The spinal cord terminates in the conus medullaris and cauda equina. Spina bifida is a congenital disorder in which there is a defective closure of the vertebral arch.
Alan (given name) Alan (given name) Alan is a masculine given name in the English language. There are numerous differing etymologies attributed to the name. The name was first introduced into England by Bretons who took part in the Norman Invasion in the 11th century. Today there are numerous variations of "Alan", a short form, and there are also numerous feminine forms of the name as well. "Alan" has many forms in other languages. "Alan" is also an Old Breton personal name (from which the modern English "Alan" is ultimately derived), as well as being a Norman French name. "Alan" is a masculine