Approximately 75% of motor and sensory pathways cross over from right to left and left to right. this crossing is referred to as:

Decussation

Explanation: Decussation occur at the medulla oblongata where the upper neurons cross each other to innervate structures in the opposite side.

That means that neurons in the right hemisphere controls the left side of the body vice versa.

its temperature is increasing. this causes molecular vibrations to increase.