The main function of the spinal cord is to:
Carry electrical signals from the brain to the rest of the body.
Carry electrical signals from the body the brain to the brain.
Carry chemical signals from the body the brain to the brain.
Carry chemical signals from the brain to the rest of the body.
(a) What is the spinal cord? What is its main function?
(b) Give the functions of the medulla.
The basic functional difference between the of brain and spinal cord is ________________.