Same chapter3 marksDifficulty: Medium
Distinguish between a sensory, a motor and a relay neuron.
Nervous System
3 marksDifficulty: Medium
State three differences between the sympathetic and the parasympathetic nervous systems.
Original Khojo Papers practice question — not from a past board paper.
Answer
The sympathetic system prepares the body for emergency, speeding the heart, dilating the pupil and raising the blood sugar; the parasympathetic system restores the body to rest, slowing the heart, constricting the pupil and stimulating digestion. Sympathetic nerves arise from the thoracic and lumbar regions, and parasympathetic nerves from the brain and the sacral region.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The two together make up the autonomic nervous system and act antagonistically.
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