Which Region(s) of the Brain, Present in a Five-Week-Old Embryo

question 79

Multiple Choice

Which region(s) of the brain, present in a five-week-old embryo, is/are derived from the forebrain?

• A) telencephalon only
• B) diencephalon only
• C) mesencephalon only
• D) telencephalon and diencephalon
• E) telencephalon and mesencephalon

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Definitions:

Tranquilizers

Substances often prescribed to soothe or calm the nervous system, assisting in alleviating symptoms of anxiety and stress.

L-DOPA

A chemical precursor of dopamine used as a medication to treat Parkinson's disease and dopamine-responsive dystonia due to its ability to cross the protective blood-brain barrier.

MPTP

A prodrug to the neurotoxin MPP+, which causes permanent symptoms of Parkinson's disease by destroying dopaminergic neurons in the brain.

Epinephrine

Also known as adrenaline, it is a hormone and neurotransmitter that plays a critical role in the body's fight-or-flight response.