What similarity do nicotine, alcohol, cocaine, and barbiturates share that make them pass the blood brain barrier easily?

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2 answers:

Sveta_85 [38]3 years ago

8 0

Answer:D. they are all small molecules

Explanation:Tight cell-wall junctions and a layer of cells around the blood vessels keep large or electrically charged molecules from entering the brain. However, small neutral molecules like those of cocaine and MA easily pass through the blood-brain barrier and enter the brain. Once inside the brain, substances of abuse begin to exert their psychoactive effects.

Svetradugi [14.3K]3 years ago

6 0

Answer:

Explanation:

they stay stored in the blood

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Smooth muscles are skeletal striated involuntary voluntary

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Answer: Smooth Muscle Tissue

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Explanation: