Question 14 Marks
Write any four differences between sympathetic and parasympathetic nervous system. Make a labelled diagram showing the nerve endings and synapses.
Answer
View full question & answer→Differences between Sympathetic and Parasympathetic Nervous System:
Labelled diagram showing the nerve endings and synapses :
| S. No. | Sympathetic Nervous System | Parasympathetic Nervous System |
| 1. | Dilation of pupils. | Shrinking of the pupil. |
| 2. | Due to its effect, the secretion of saliva decreases. | Simulation of secretion of saliva. |
| 3. | It increases the heart beat. | It reduces heart beat. |
| 4. | It expands the lungs. | It causes contraction of the lungs. |
| 5. | It increases the secretion of sweat. | It reduces the secretion of sweat. |