Bio I und II

Muscles cam be caused to twich when nerves are stimulated electrically and the brain itself can generate electricity. --> Nerves are wires that conduct electrical signals to and from the brain.

Just before nerves attach to spinal cord the fibers devide into 2 branches. Dorsal root: enters toward back of the spinal cord. Ventral root enters toward the front. Cutting ventral roots causes muscle paralysis.

They carry sensory information into the spinal cord.