Yr 13 Structure of Neurons

Question 1

AO1 for Sensory Neurons

Answer 1

Detects sensations at sensory receptors; action potential travels across nerve passing along the myelinated axon then the electrical signal is converted into a chemical signal to cross the synapse

Question 2

AO1 for Relay Neurons

Answer 2

after synaptic transmission a new action potential forms in the dendrites, this neurone is in the spine, and sends a signal to the CNS but also immediately sends a signal along its axon to the motor neuron

Question 3

AO1 for Motor Neurons

Answer 3

detects signal from the relay neuron via synaptic transmission and passes this signal along its own myelinated axon to stimulate an effector (e.g. a muscle)