As Lucinda drove home, she was suddenly alerted to the sound of a blaring horn and realized she had drifted off to sleep. Which nervous system division dominated when she was startled awake?
The sympathetic nervous system is a part of the autonomic nervous system whose main function is to help the body tackle the freeze-flight-fight response.
During the flight and fight response, the sympathetic nervous system regulates the homeostasis by stimulating the nervous and hormonal responses.
The main hormone-induced is the adrenaline from the adrenal gland.
Therefore, as Lucinda drove home, it is the sympathetic nervous system that made her wake up to the blazing horn sound.
