Facial nerve is impacted by the stroke causing the face to appear emotionless on one side.
Facial nerve is the seventh in number and is responsible for the movement and expression of face. It originates from the pons region of the brain. It also provides the sensitivity of taste to the initial two-third of the tongue. The nerve comprises of motor, sensory as well as parasympathetic portions.
Stroke is homologous to heart attack, with the only difference that the supply to blood is blocked to the brain instead of heart. The supply is stopped due to blockage in blood vessels.
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