The C1 vertebra known as the atlas is the superior-most vertebra in the spinal column. There are eight pairs of cervical nerves twelve pairs.
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It extends from the pylorus to the Duodeno-jejunal flexure.
. In the human body there are 31 pairs of spinal nerves one on each side of the vertebral columnThese are grouped into the corresponding cervical thoracic lumbar sacral and coccygeal regions of the spine. Among the vertebrae of the spinal column the cervical vertebrae are the thinnest and most delicate bones. It occupies the epigastric and umbilical regions.
The cervical vertebrae of the spine consist of seven bony rings that reside in the neck between the base of the skull and the thoracic vertebrae in the trunk. First Part of Duodenum. A spinal nerve is a mixed nerve which carries motor sensory and autonomic signals between the spinal cord and the body.
Duodenum lies above the level of umbilicus opposite vertebrae L1 L2 and L3. Duodenum is divided into four parts. It plays vital roles in the support of the skull spinal cord and vertebral arteries and provides attachment points for several muscles of the neck.
Its a C-shaped tube and is about 25 centimeters 10 inches long.
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