Constriction occurs when the muscular walls of blood vessels contract.
Cocaine constricts the blood vessels.
Cocaine causes the muscular walls of blood vessels to contract. .
Cocaine causes what to contract?
[1] layers of fat
[2] a lot of human deaths
[3] Walls of blood vessels.
[4] harmful substances
[5] the rest of the body
[6] metabolic reaction
[7] direct damage to the lungs
[8] decreases its bodily water