Question

The sympathetic nervous system causes

• A. Constriction of the pupil
• B. Decreased heart rate
• C. Increased gastric secretion
• D. Reduction of adrenaline secretion
• E. Increased respiration

Answer 1

The correct option is E Increased respiration

• Whenever the sympathetic system is activated, the metabolism of our body increases.
• This increases CO2 levels and reduces the pH of the blood. This acts as a stimulus for the respiratory centre and the respiratory rate increases. The sympathetic system is usually activated at the time of exercise. Hence, The sympathetic nervous system causes Increased respiration.
So, the correct answer is 'Increased respiration'.