Explain the processes involved when drugs such as cocaine, marijuana, mescaline or alcohol enter

Explain the processes involved when drugs such as cocaine, marijuana, mescaline or alcohol enter the brain. You may draw a diagram to amplify your explanation.NOTE: Make sure you answer all parts of the discussion question.
SUBMISSION – IN DISCUSSION BOARD ASSIGNED BELOW, and be timely in order to allow your classmates to respond.
You will be graded on:General Requirement(s):
Preparation: Read the directions for the discussion board prior to participation.
Write: Make sure you directly and completely address the discussion forum question(s)/topic. You must respond to at least one of your fellow classmates posting explaining the reason(s) for the agreement or disagreement with their initial posting. Make sure to use proper grammar, punctuation, and proper APA citation, when writing your initial post.