What are the spinal cord?
Spinal nerves are the blood vessels that carry information from the brain into the body and vice -inspire. As part of the peripheral nervous system, they are found in the spinal cord, which, like the brain, is part of the central nervous system, but leaves the spinal cord and travels to the various parts of the body that innervate. The miles are paired, which means that for any given nerve is one supplying the right side of the body and one adds the left side. Thirty-One Pairs in Total Exit The Spine, with Approximatetes One Pair Leaving Each Vertebra: Eight Pairs Come From the Cervical Region, 12 Pairs Exit The Thoracic Region, Five Pairs Leave the Lumbar Region, Five Pairs Come From the Sacral Region, and One Pair Exits the Coccyx, OR TAILBONE. Motor signals connect the brain with the muscles and either motion to move the body to move voluntarily or cause the body to involuntarily react. Sensory signals connect the brainThe receptors in the skin and tell the body, for example, whether the stimulus is hot or cold or painful.
They also send environmental and proprioceptive allusions that call the brain to adjust movement, such as whether the surface that goes is hard or soft or slippery. Autonomic signals communicate with the brain about internal body functions, such as whether the kidneys work properly. Spinal nerves transmit all three of these signals between the brain and the body.
as well as arteries and veins in the circulatory system work the backbone nerves in two directions to transfer signals towards the brain and away. The root of the back spine, which leaves the spinal cord on its back side, carries the so -called am afferent sensory signals or those that carry information from the sensory recipe to the central nervous system. On the front of the spinal cord in the same vertebral segment is the ventral root of the given spinal nerve that bears the EfferentMotor signals from the central nervous system into the body. In other words, the ventral root tells the body to respond in response to the information brought by the back root, such as catching a hand away from the pan, which, as sensory receptors said the brain, is hot.