A thick, whitish cord of nerve tissue which is a major part of the vertebrate central nervous system. It extends from the brain stem down through the spine, with nerves branching off to various parts of the body
Your spinal cord is a thick cord of nerves inside your spine which connects your brain to nerves in all parts of your body. The thick, whitish cord of nerve tissue that extends from the medulla oblongata down through the spinal column and from which the spinal nerves branch off to various parts of the body. the thick string of nerves enclosed in your spine, by which messages are sent to and from your brain. In vertebrates, the body's major nerve tract. In humans it is about 18 in. (45 cm) long, running from the base of the brain through the vertebral column. It is covered by the meninges and cushioned by cerebrospinal fluid. It connects the peripheral nervous system (outside the brain and spinal cord) to the brain. The spinal cord and the brain constitute the central nervous system. Sensory impulses reach the brain via the spinal cord, and impulses from the brain travel down the spinal cord to motor neurons, which reach the body's muscles and glands via the peripheral nerves. The peripheral nerves are connected to the spinal cord via the spinal nerves. In humans there are 31 pairs of spinal nerves containing both sensory and motor fibres, which originate in the spinal cord and pass out between the vertebrae. These nerves branch and relay motor impulses to all parts of the body. Injury to the spinal cord may result in loss of communication between the brain and outlying parts and cause paralysis, loss of sensation, or weakness in the parts of the body served by areas below the injured region. Because nerve cells and fibres are unable to regenerate themselves, the effects are usually permanent
Major bundle of nerves of the central nervous system located in the vertebral canal (back) Click on the drawing to see an enlarged version
the part of the central nervous system that lies below the magnum foramen, and that extends downward to just above the cauda equina; it contains the cell bodies of the spinal nerves and their afferent and efferent fibers
The spinal cord is the portion of the central nervous system enclosed in the vertebral column, or back, consisting of nerve cells and bundles of nerves connecting all parts of the body with the brain
A bundle of nerves that leaves the brain and runs down the length of the back and is the main means for transmitting messages between the brain and the body
The longitudinal cord of nerve tissue that is enclosed in the spinal canal It serves not only as a pathway for nervous impulses to and from the brain, but as a center for carrying out and coordinating many reflex actions independently of the brain
a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tube-like structure extending from the base of the brain through the vertebral canal to the upper lumbar region
Part of the central nervous system extending from the base of the skull through the vertebrae of the spinal column It is continuous with the brain stem, and like the brain it is encased in a triple sheath of membranes Thirty-one pairs of spinal nerves arise from the sides of the spinal cord The spinal cord carries information from the body's nerves to the brain and signals from the brain to the body
—A long tube of nerve tissue inside the spinal column running from the brain down the length of the back inside of the spine
a bundle of nerves that carries messages between the brain and the rest of the body
The extension of the brain Coming off of the spinal cord are 31 pairs of spinal nerves which communicate with the body as a whole The spinal cord is protected by the Spinal Column
Nerve fibers that carry instructions to the rest of your body These nerve fibers connect all the parts of your body to your brain, telling your body what to do The spinal cord is your body's information superhighway to and from the skin, muscles, and joints