Constriction occurs when the muscular walls of blood vessels contract, and cocaine also tightly squeezes, or constricts, the coronary arteries that feed blood to the heart. Given these facts, what occurs when the muscular walls of blood vessels contract among the following options:
- Dehydration
 - rapid expansion
 - smooth skin
 - smoking tobacco
 - loose bumping
 - pinched nerves
 - tight sqeezing
 - movement


 

       tight sqeezing  