Question

1. 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:

• The bloodstream circulates throughout the body, including the brain. When alcohol is in the bloodstream, it is carried to the brain.
• Option b is incorrect because the brain does not have a specific internal vein - based system to filter alcohol. The liver is the main organ for alcohol metabolism.
• Option c is wrong as oxygen in the brain does not neutralize alcohol effects. Alcohol affects neurotransmitter systems in the brain.
• Option d is incorrect because peripheral vision is not related to compensating for alcohol presence in terms of the brain's impact. Peripheral vision is a visual function and not a mechanism to counteract alcohol's effects on the brain.

Answer:

A. Bloodstream delivers substances directly to the brain