A child was frightened by a big dog. The child's pupils became dilated, and the heart and respiratory rates increased. These symptoms were caused by stimulation of what branch of the nervous system?
1 Answer
Dec 3, 2016
This is known fight and flight responce.
Explanation:
When somebody is in danger body secretes adrenalin hormone. It prepares body to fight and flight. Increase in blood pressure, increase in heart rate, change in pitch of voice, or finally run away from situation.
