what is spinal cord

The spinal cord is divided into four major parts: the cervical, thoracic, lumbar, and sacral nerves. Urgent medical attention is critical to minimize the effects of any head or neck trauma. Spinal cord injury is associated with a risk of developing secondary conditions that can be debilitating and even life-threatening—e.g. The spinal cord is the major bundle of nerves that carries nerve impulses to and from the brain to the rest of the body. The spinal cord allows for movement, feeling sensations and control of bodily functions. Spinal cord function can be split into three different areas: It is a highway of communication from the brain, sending messages to other parts of the body including instructing muscles that control movement. The spinal cord is a part of the central nervous system. The spinal cord consists of nerves that carry incoming and outgoing messages between the brain and the rest of the body. The spinal column is made up of bones called vertebrae. When the spinal cord is injured, the exchange of information between the brain and other parts of the body is disrupted. Spinal cord injury can cause a range of symptoms, including weakness, loss of muscle function, and loss of sensation. It is part of the body’s collection of nerves, called the central nervous system, along with the brain. The human spinal cord is protected by the bony spinal column shown to the left. Immediate treatment can reduce long-term effects. The spinal cord is protected by the 33 vertebrae or ‘back bones’ that make up the spine. What is spinal cord injury? The spinal cord consists of nerve fibers that transmit impulses to and from the brain. Collectively, the entire spinal cord is divided into 31 segments; at every segment, there is a pair of right and left spinal nerves. Spinal cord definition, the cord of nerve tissue extending through the spinal canal of the spinal column. The compression can come on suddenly in some cases. That is why a spinal cord injury causes loss of movement, sensation, and reflexes. The vertebral column is not a single bone. Beginning at the base of the brain stem, the spinal cord continues to almost the end of the spine. It is composed of an inner core of gray substance in which nerve cells predominate and an outer layer of white substance in which myelinated nerve fibers predominate. It's roughly 40cm long and about as wide as your thumb for most of its length. The interior of the spinal cord is made up of neurons, their support cells called glia, and blood vessels. When the body moves, messages travel from the brain down the spinal cord. Spinal nerves provide a means of communication between the spinal cord and the rest of the body. How does the central nervous system differ from other systems of the body? Rings of bone, called vertebrae, surround the spinal cord. The spinal cord is a slender column of nervous tissue that passes downward from the brain into the vertebral canal. The spinal cord is the highway for communication between the body and the brain. The spinal cord is the major bundle of nerves carrying impulses to and from the brain to the rest of the body. Spinal cord. The blow fractures, compresses, or dislocates some of the vertebrae, which are the rings of bone that protect the nerves inside the spinal cord. See more. A small device, similar to a pacemaker, is implanted in the body to deliver electrical pulses to the spinal cord. The spinal cord is a bundle of nerves that is responsible for carrying nerve impulses between the brain and the rest of the body. Spinal cord infarction may also occur because of conditions such as vascular damage to the spine, injury which causes the arteries to be damaged or with more specific illnesses such as cauda equine syndrome. Congenital spinal stenosis: This is a condition in which a person is born with a small spinal canal. The spinal cord extends down through the upper two thirds of the vertebral canal, from the base of the brain to the lower back, and is generally 15 to 17 inches long depending on an individual's height. In the meantime, spinal cord injury treatment focuses on preventing further injury and empowering people with a spinal cord injury to return to an active and productive life. The areas affected are the parts of the body that connects to the spinal cord at the level of the injury or lower. The spinal cord is a complex cylinder of nerves that starts at the base of your brain and runs down the vertebral canal to the backbone. Although continuous with the brain, the spinal cord begins where nervous tissue leaves the cranial cavity at the level of the foramen magnum. The vertebrae house the spinal cord. Some people have partial injury, where they still have nerves that are … The number of axons (also known as nerve fibres) in a nerve can vary anywhere from just a handful of fibres to more than a million. Spinal cord compression has many possible causes. Along with the brain, it is the major component of the central nervous system that controls many bodily functions. The spinal cord is a bundle of nerves and other tissue that the vertebrae of the spine contains and protects. Spinal Cord – It is a thin, long tubular structure which is made up of nervous tissues with the length of 43cm long in women and 45cm in men.. It also carries sensory information back to the brain. Spinal cord injury: Trauma or damage to the spinal cord, the major column of nerve tissue that is connected to the brain and lies within the vertebral canal and from which the spinal nerves emerge. ; The spinal cord is composed of neurons that send and receive signals along tracts towards and away from the brain. 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