Question

please note: leaving this page before submitting your assessment will result in failing this attempt. if you exceed the number of allowed attempts, you will be locked out of your course and required to re-register. 22) why does alcohol in the bloodstream have a significant impact on the brain? a) bloodstream delivers substances directly to the brain b) brain has an internal system of veins to filter alcohol c) oxygen in the brain neutralizes alcohol effects d) peripheral vision compensates for alcohol presence

Explanation:

To determine the correct answer, we analyze each option:

• Option a: The bloodstream carries substances, including alcohol, directly to the brain via the circulatory system. This explains why alcohol in the bloodstream impacts the brain significantly.
• Option b: The brain does not have an internal system of veins to filter alcohol. The blood - brain barrier regulates what enters the brain, but it's not a filtering system for alcohol in the way described.
• Option c: Oxygen in the brain does not neutralize alcohol effects. Alcohol affects brain function by interacting with neurotransmitter systems, and oxygen has no such neutralizing role.
• Option d: Peripheral vision has no relation to compensating for the presence of alcohol in the bloodstream and its impact on the brain.

Answer:

a) Bloodstream delivers substances directly to the brain