Questions: Question 5 (1 point) Because the blood-brain barrier is not formed until a child is one to two years of age, any psychoactive substance used by a pregnant woman can be particularly harmful to a developing fetus. True False

Question 5 (1 point)
Because the blood-brain barrier is not formed until a child is one to two years of age, any psychoactive substance used by a pregnant woman can be particularly harmful to a developing fetus.
True
False

Transcript text: Question 5 (1 point) Because the blood-brain barrier is not formed until a child is one to two years of age, any psychoactive substance used by a pregnant woman can be particularly harmful to a developing fetus. True False

Solution

The answer is True: Because the blood-brain barrier is not formed until a child is one to two years of age, any psychoactive substance used by a pregnant woman can be particularly harmful to a developing fetus.

Explanation:

The blood-brain barrier is a protective mechanism that prevents certain substances from entering the brain from the bloodstream. It is not fully developed in a fetus or a very young child, which means that harmful substances can more easily reach the developing brain.
Psychoactive substances can cross the placenta and affect the fetus, potentially leading to developmental issues or other health problems.
Therefore, the statement is true because the lack of a fully formed blood-brain barrier in a fetus makes it more vulnerable to the effects of psychoactive substances.

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