Bell's palsy is differentiated from stroke because it primarily affects which area?

• A. The face only
• B. The entire body
• C. The brain's left side
• D. The eyes only

Answer: (A)

Bell's palsy is a peripheral issue with the facial nerve, so it produces weakness on one side of the face and primarily involves facial muscles used for expression. This localized facial involvement contrasts with stroke, which arises from brain area problems and typically affects broader regions such as the arms, legs, speech, or other neurological functions. Because Bell's palsy affects the muscles of facial expression specifically, the defining feature is the face being the primary area impacted.