<Tr> <Th> FMA </Th> <Td> 7647 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column . The brain and spinal cord together make up the central nervous system (CNS). In humans, the spinal cord begins at the occipital bone where it passes through the foramen magnum, and meets and enters the spinal canal at the beginning of the cervical vertebrae . The spinal cord extends down to between the first and second lumbar vertebrae where it ends . The enclosing bony vertebral column protects the relatively shorter spinal cord . It is around 45 cm (18 in) in men and around 43 cm (17 in) long in women . Also, the spinal cord has a varying width, ranging from 13 mm (⁄ in) thick in the cervical and lumbar regions to 6.4 mm (⁄ in) thick in the thoracic area . </P> <P> The spinal cord functions primarily in the transmission of nerve signals from the motor cortex to the body, and from the afferent fibers of the sensory neurons to the sensory cortex . It is also a center for coordinating many reflexes and contains reflex arcs that can independently control reflexes and central pattern generators . </P>

Where does the spinal cord start and end
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