Final answer:
The spinal cord connects the brain with the rest of the body, including all other yang channels. It carries information to and from the brain and is made up of gray matter and white matter
Step-by-step explanation:
The spinal cord connects the brain with the rest of the body, including all other yang channels. It is a thick bundle of nerve tissue that carries information to and from the brain. The spinal cord contains gray matter and white matter, with the gray matter mainly associated with sensory functions and the white matter primarily relaying motor commands. The spinal cord is connected to the body through spinal nerves, which are part of the peripheral nervous system.