The items shown are components of the nervous system. 1. brain 2. effector 3. receptor 4. relay neurone In a reflex arc, which of these structures are linked by synapses to a motor neurone?
- A1 and 2
- B1 and 3
- C2 and 4
- D3 and 4
Biology 0610 · IGCSE · Coordination and response
The items shown are components of the nervous system. 1. brain 2. effector 3. receptor 4. relay neurone In a reflex arc, which of these structures are linked by synapses to a motor neurone?