Question

On average, one preganglionic neuron synapses with eight or nine postganglionic neurons, each innervating a different target. A) true for both divisions B) true only for the sympathetic division C) true only for the parasympathetic division

Answer 1

B) true only for the sympathetic division.

Step-by-step explanation:

B) true only for the sympathetic division.

The sympathetic division of the autonomic nervous system is responsible for the "fight or flight" response, which requires a rapid and widespread activation of various organs and tissues in the body. To achieve this, each preganglionic neuron in the sympathetic division typically synapses with multiple postganglionic neurons, allowing for the simultaneous activation of multiple targets. In contrast, the parasympathetic division is responsible for the "rest and digest" response, which generally requires more specific and localized activation of target organs. Therefore, it is more common for one preganglionic neuron in the sympathetic division to synapse with multiple postganglionic neurons, while in the parasympathetic division, one preganglionic neuron typically synapses with only a few postganglionic neurons that innervate specific target organs.