The spinal cord and the brain make up the central nervous system, and spinal cord nerves carry most messages between the brain and the rest of the body. 
The vagus nerve carries the signal from the brain to the heart.
        
             
        
        
        
Answer:
The correct answer is - a lunar eclipse (total lunar eclipse).
Explanation:
When the sun and moon align opposite one another and earth between them and blocks the light of the sun to reach the moon known as a lunar eclipse. A lunar eclipse can be a partial or total lunar eclipse.
A partial lunar eclipse occurs when a part of the earth covers the moon to get the light or between the sun and the moon. The total lunar eclipse occurs when the whole moon is opposite to the sun and earth between them.
 
        
             
        
        
        
Answer: Inflammation
Explanation: Inflammation, is caused by the dilation of blood vessels which allows the passage of fluid, antibodies and WBC's into the infected body area