Describe the structure of spinal cord.

Explanation

1) Spinal cord extends from the back of the hind brain (medulla oblongate) to the back of the stomach or lumbar region.
2) It is cylindrical in shape. It passes through the neural canal of the vertebral column.
3) The white matter is towards periphery, while grey matter is towards the centre of the spinal cord.
4) In the cross-section, grey matter of the spinal cord is in the form of 'H' and it is called 'horn'.
5) In the middle of the grey matter of the spinal cord, there is a canal called spinal canal which is filled with Cerebron-spinal Fluid.
6) From the sides of spinal cord 31 pairs of nerves arise and supply branches to various parts of the body.
7) Function of spinal cord is receiving and sending information from brain to various parts and from various parts to brain. And it also helps in reflex actions.