Question

Dual innervation of organs with nerve fibers whose action oppose each other enables precise control over an organs activity like having both an accelerator and a brake to control the speed of a car?

Answer 1

The autonomic nervous system uses dual innervation from the sympathetic and parasympathetic divisions to regulate internal organs, similar to a car's accelerator and brake for precise control.

Step-by-step explanation:

The autonomic nervous system (ANS) is crucial for regulating the involuntary functions of our internal organs and relies on dual innervation to maintain homeostasis. This involves two opposing divisions: the sympathetic nervous system, which prepares the body for fight-or-flight responses, and the parasympathetic nervous system, which supports rest-and-digest activities. Dual innervation works much like an accelerator and a brake in a car, allowing for fine-tuned control over organ activity. For instance, the heart receives signals from both systems: one to increase heartbeat and another to decrease it, which helps maintain a proper balance dependent on the body's needs at any given moment.