In course of an experiment a peripheral section of vagus of an expiremental animal is being stimulated. What changes will be observed

Answer options

1. Pupil dilation
2. Heart rate fall
3. Increase of respiration rate
4. Bronchi dilation
5. Heart hurry

Explanation

The vagus nerve is the tenth cranial nerve or CN X, and interfaces with parasympathetic control of the heart, lungs, and digestive tract. Vagus nerves mediate the lowering of the heart rate and in the case of vagotomy (cutting of the vagus nerve), it will lead to the increased heartbeat (tachycardia) causing deep breathing and infrequent.