Question

State whether the following statement is true or false.

Out of the 31 pairs of spinal nerves the sensory spinal nerves are connected to the back and dorsal part of the cord.

• A. True
• B. False

Answer 1

The correct option is A True

There are thirty-one pairs of peripheral spinal nerves connected to the spinal cord. In fact, there are two (left and right) dorsal roots through which sensory information enter into the spinal cord. The motor spinal nerves are connected to the cord at the front or ventral part. There are two (left and right) ventral roots through which motor information go out of the spinal cord. The sensory information go towards the brain in the two dorsal columns of neurons and motor information go downward of the spinal cord in the two ventral columns of neurons. There are also two sets of lateral (side) columns of neurons whose function is both sensory and motor in nature.

Therefore, the correct answer is true.