A
Visceral pain signals and pain signals from the skin synapse with separate populations of neurons in the dorsal horn
B
Visceral pain transmission and pain transmission from the skin are received by a common set of neurons in the thalamus
C
Visceral pain signals are rarely of sufficient magnitude to exceed the threshold of activation of dorsal horn neurons
D
Some visceral pain signals and pain signals from the skin provide convergent input to a common set of neurons in the dorsal horn