Which Statement Best Explains Why a CNS Stimulant Helps a Patient

question 20

Multiple Choice

Which statement best explains why a CNS stimulant helps a patient with attention-deficit hyperactivity disorder (ADHD) ?

• A)Neurotransmitters are blocked,limiting the effects they can produce within the PNS.
• B)Activation of certain areas of the brain causes increased attention and ability to focus.
• C)Neurotransmitter levels are reduced,which produces a calming effect within the CNS.
• D)Certain areas of the brain are deactivated,resulting in a calming effect.

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Definitions:

Apical Meristem

A region found at the tips of roots and shoots in plants where cells are undifferentiated and capable of division, leading to growth in length.

Root Cap

A protective structure at the tip of a plant root that guards the growing tip and aids in penetrating the soil.

Pericycle

A layer of meristematic cells typically found between the endodermis and phloem in roots.

Parenchyma Cells

A type of plant cell known for its role in photosynthesis, storage, and tissue repair and regeneration.