Structure and function of the nervous system
Answers are for parents and teachers.
1
Put neuron types and their roles in a table.
Sensory – organ to centre; motor – centre to organ; interneuron – links the two.
2
Compare the somatic and autonomic nervous systems.
Somatic – skeletal muscles, voluntary; autonomic – internal organs, involuntary.
3
Choose one simple reflex and write the 5 parts of its arc.
Example: hot hand – skin receptor, sensory neuron, spinal cord, motor neuron, arm muscle.
4
An impulse travels at 100 m/s. How long does it take for 1.8 m?
1.8 ÷ 100 = 0.018 s