Pithing is a technique used to immobilize or kill an animal by inserting a needle or metal rod into its brain.
Method of pithing a frog from Anatomical Technology as Applied to the Domestic Cat: An Introduction to Human, Veterinary, and Comparative Anatomy Book by Burt Green Wilder and Simon Henry Gage (1882)
The spinal cord is a long, thin, tubular structure made up of nervous tissue that extends from the medulla oblongata in the lower brainstem to the lumbar region of the vertebral column of vertebrate a
Pithing
…stunning hole and pushed to its full length; the rod then remains locked in the hole and is disposed of with the animal. Double pithing destroys the spinal cord, thus killing the animal, and also may reduce the reflex kicking which occurs at stunning, and so contribute to the safety of the slaughterer. This…
Spinal cord segments and spinal nerves, spinal cord detail, and spinal meninges and conus medullaris
Cross-section of rabbit spinal cord
Cross section of adult rat spinal cord stained using Cajal method
The base of the brain and the top of the spinal cord