explain with neat labelled diagram structure of spinal cord and write its function
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Explanation:
The spinal cord (in yellow) connects the brain to nerves throughout the body. The spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column....
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what is spinal cord?
The spinal cord, along with the brain, makes up the central nervous system. It resembles a thick, cream-colored rope and is made up of nerves that relay messages between the brain and the rest of the body. It stretches from the medulla oblongata, at the base of the brain, to the lower back, and is housed in a tunnel made by the vertebrae, or bones of the spinal column. All vertebrate animals have spinal cords, from simple jawless fish to complex birds and mammals.
Functions
- The spinal cord works a bit like a telephone switchboard operator, helping the brain communicate with different parts of the body, and vice versa. Its three major roles are
- Electrical communication. Electrical currents travel up and down the spinal cord, sending signals which allow different segments of the body to communicate with the brain.
- Electrical communication. Electrical currents travel up and down the spinal cord, sending signals which allow different segments of the body to communicate with the brain.Walking. While a person walks, a collection of muscle groups in the legs are constantly contracting. The action of taking step after step may seem incredibly simple to us since we have been doing it all of our lives, but there are actually a lot of factors that have to be coordinated properly to allow this motion to occur. This central pattern generators in the spinal cord are made up of neurons which send signals to the muscles in the legs, making them extend or contract, and produce the alternating movements which occur when a person walks.
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