Figure 14- 1 Spinothalamic Tracts

Multiple Choice

Figure 14- 1 Spinothalamic Tracts
Use Figure 14- 1 to answer the following questions:
-Which of the following is true regarding the structure labeled "6"? 1. The synapse occurs between motor neurons.
2) The sensations may be filtered out.
3) The third- order neuron projects to the primary sensory cortex.
4) The third- order neuron's axon is identified.

A) 2 only
B) 3 only
C) 1 and 3
D) 1 and 4
E) 3 and 4