The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles. The nerves also carry electrical signals back to the brain that allow you to feel sensations.
Does the spinal cord control thinking?
The brain and spinal cord together form the body’s central nervous system, which acts as the coordination and relay station for information about the outside world. Without a central nervous system you would be unable to think or feel, to voluntarily move, or even to breathe.
What does each spinal nerve control?
The spinal nerves act as “telephone lines,” carrying messages back and forth between your body and spinal cord to control sensation and movement. Each spinal nerve has two roots (Fig. 8). The ventral (front) root carries motor impulses from the brain and the dorsal (back) root carries sensory impulses to the brain.
What are the functions of a spine?
Your spine, or backbone, is your body’s central support structure. It connects different parts of your musculoskeletal system. Your spine helps you sit, stand, walk, twist and bend. Back injuries, spinal cord conditions and other problems can damage the spine and cause back pain.
What parts of the body does the spine control?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
Can the spinal cord repair itself?
Unlike tissue in the peripheral nervous system, that in the central nervous system (the spinal cord and brain) does not repair itself effectively.
What are the 3 functions of the central nervous system?
The CNS is comprised of the brain, cerebellum and spinal cord. Remaining neurons, and associated cells, distributed throughout the body form the PNS. The nervous system has three broad functions: sensory input, information processing, and motor output.
How smart is the spinal cord?
Summary: New research has shown that the spinal cord is able to process and control complex functions, like the positioning of your hand in external space. ‘This research has shown that a least one important function is being done at the level of the spinal cord and it opens up a whole new area of investigation.
Can the spinal cord work without the brain?
For most people, the concepts of learning and emotions immediately call to mind images of the brain. However, the central nervous system cannot function without the spinal cord. Doctors already know that the spinal cord can control reflexes without input from the brain.
What part of the spine has no nerves?
Because the lumbar spine has no spinal cord and has a large amount of space for the nerve roots, even serious conditions—such as a large disc herniation—do not typically cause paraplegia (loss of motor function in the legs).
What causes spine pain?
Upper and middle back pain may be caused by: Overuse, muscle strain, or injury to the muscles, ligaments, and discs that support your spine. Poor posture. Pressure on the spinal nerves from certain problems, such as a herniated disc.