6 doctors weighed in:
How big is the spinal cord?
6 doctors weighed in

Dr. Richard Simmons
Pediatrics - Neurology
3 doctors agree
In brief: Not very
The spinal cord is roughly 18 inches long and somewhere between 1/4 and 1/2 inch in diameter. It extends from the foramen magnum (the giant hole at the base of the skull) to approximately the 10th-12th thoracic vertebrae.

In brief: Not very
The spinal cord is roughly 18 inches long and somewhere between 1/4 and 1/2 inch in diameter. It extends from the foramen magnum (the giant hole at the base of the skull) to approximately the 10th-12th thoracic vertebrae.
Dr. Richard Simmons
Dr. Richard Simmons
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Dr. Kareen Velez
Physical & Rehabilitation Medicine
1 doctor agrees
In brief: 1.5 feet long
The spinal cord measures about 43-45cm or 17-18 inches long.
The width is variable, since it has 2 areas of enlargement at the cervical and lumbar region. Thicker regions of the spinal cord measure about 1/2 inch or 1.25 cm (close to the thickness or your thumb) and the thinner areas measure 1/4 inch or 1.13 cm (close to the thickness or your fifth finger).

In brief: 1.5 feet long
The spinal cord measures about 43-45cm or 17-18 inches long.
The width is variable, since it has 2 areas of enlargement at the cervical and lumbar region. Thicker regions of the spinal cord measure about 1/2 inch or 1.25 cm (close to the thickness or your thumb) and the thinner areas measure 1/4 inch or 1.13 cm (close to the thickness or your fifth finger).
Dr. Kareen Velez
Dr. Kareen Velez
Thank
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