The spinal cord, which connects the medulla oblongata in the brainstem to the lumbar portion of the vertebral column, is a long, thin, tubular tube consisting of nerve tissue (backbone). The cerebrospinal fluid-filled core canal of the spinal cord is enclosed by the backbone. The central nervous system is composed of the brain and spinal cord (CNS). In humans, the spinal cord starts at the base of the skull and travels via the foramen magnum before entering the spinal canal at the first cervical vertebra. Between the first and second lumbar vertebrae, the spinal cord comes to a stop. The somewhat shorter spinal cord is shielded by the bony vertebral column that surrounds it. In adult men, it measures roughly 45 cm (18 in) length.
and adult women are roughly 43 cm (17 in) length. The spinal cord's diameter varies from 13 millimetres (1 inch) in the cervical and lumbar regions to 6.4 millimetres (1 inch) in the thoracic region.

Spinal cord

by 3D(sketchfab)

Spinal cord

by 3D(sketchfab)

The spinal cord, which connects the medulla oblongata in the brainstem to the lumbar portion of the vertebral column, is a long, thin, tubular tube consisting of nerve tissue (backbone). The cerebrospinal fluid-filled core canal of the spinal cord is enclosed by the backbone. The central nervous system is composed of the brain and spinal cord (CNS). In humans, the spinal cord starts at the base of the skull and travels via the foramen magnum before entering the spinal canal at the first cervical vertebra. Between the first and second lumbar vertebrae, the spinal cord comes to a stop. The somewhat shorter spinal cord is shielded by the bony vertebral column that surrounds it. In adult men, it measures roughly 45 cm (18 in) length.
and adult women are roughly 43 cm (17 in) length. The spinal cord's diameter varies from 13 millimetres (1 inch) in the cervical and lumbar regions to 6.4 millimetres (1 inch) in the thoracic region.

physics