Question

why is understanding the autonomic innervation of organs important?
to understand how the body regulates its functions
to analyze the effect of pollution on the environment
to study how organs are formed
to learn how to perform surgery
to understand the function of the immune system

Explanation:

The autonomic nervous system controls involuntary functions of organs. Understanding its innervation helps in knowing how the body regulates functions like heart - rate, digestion etc.

Answer:

To understand how the body regulates its functions