Spinal cord :
1. Spinal cord is a long and cylindrical structure passing through the vertebral column.
2. The vertebrae (back bones) of the vertebral column protect the spinal cord from injuries.
3. From the sides of spinal cord, 31 pairs of nerves take their origin one from each side and supply branches to various parts of the body.
4. Basic function of spinal cord is to act as a relay station – receiving information from various parts of the body parts below the head and send this information to the brain.
5. Similarly, it receives information from brain and sends this information to other parts of the body.
6. In addition to this, spinal cord also plays a major role in the RFELEX ACTIONS.
7. The message received from the sensory nerve is passed into spinal cord. It is analyzed by the INTER NEURON present in the spinal cord and response is given. It is conveyed to the effector organ through motor nerve. The effector organ shows the response.
8. Thus spinal cord saves us from dangerous stimuli through it’s REFLEX ACTIONS.
