Draw a labelled diagram of a reflex arc for a pain withdrawal reflex.

Diagrams are to include the following structures appropriately drawn and in appropriate relationship to each other.
(pain) receptor indicated at the dendrite end of the sensory neuron;
sensory neuron shown in appropriate abbreviated shape from a (pain) receptor to the central nervous system (CNS) with dendrites and axon;
dorsal root ganglion shown next to the CNS;
relay neuron/interneuron/associative neuron shown in the CNS/spinal cord with dendrites and axon;
motor neuron shown with dendrites and axon from the CNS to an effector;
effector/muscle labelled as a muscle;
white matter shown correctly in the spinal cord;
grey matter shown correctly in the spinal cord;
spinal cord shown connected to the brain and with appropriate position relative to the structures given above;
Award [3 max] for inaccurate diagrams.
N.B. Accept stylized diagrams of neurons.

E2 was either done very well (the majority of candidates) or very poorly. It is important to emphasis clear drawing and annotation.