Question

which of the following activities will result in chemicals easily reaching the brain tissue?
check all that apply
smoking a cigarette
drinking vodka
taking brain cancer medications orally
eating a high - glucose meal
wearing an oxygen mask

Explanation:

• Smoking a cigarette: Chemicals in cigarette smoke (like nicotine) can quickly enter the bloodstream via the lungs and reach the brain.
• Drinking vodka: Alcohol (ethanol in vodka) is a small, lipid - soluble molecule. It can pass through the blood - brain barrier easily and reach the brain tissue.
• Taking brain cancer medications orally: Some brain - targeting medications are designed to pass through the blood - brain barrier. Oral administration (after digestion and absorption into the bloodstream) can lead to the chemicals reaching the brain.
• Eating a high - glucose meal: Glucose is the brain's primary energy source. It can cross the blood - brain barrier (via specific transporters) to reach the brain tissue.
• Wearing an oxygen mask: Oxygen is essential for brain function. It enters the bloodstream through the lungs and is transported to the brain (as part of normal respiration, not in the sense of a "chemical" in the same way as the other substances, but it is a molecule that reaches the brain).

Answer:

Smoking a cigarette, Drinking vodka, Taking brain cancer medications orally, Eating a high - glucose meal, Wearing an oxygen mask.