Question

If pons is destroyed, then which activity of the body is affected mostly?
A. Breathing is not controlled properly
B. Tachycardia
C. Die immediately
D. Not much effect

Answer 1

Hint: Pons is situated between medulla oblongata and the midbrain which measure about 2.5 cm in length and it includes functions such as regulation of respiration, control involuntary action, etc.

Complete answer:
Pons is a portion of the brain stem, as shown in the diagram it is located above medulla oblongata and below the midbrain.
Pons is the other respiratory center which functions to control the rate or speed of involuntary respiration and the other functions are to control involuntary actions, sensory roles in hearing, equilibrium, and taste, facial expressions, chewing, swallowing, and the secretion of saliva and tears, etc. If the pons is destroyed then there will be problems in breathing as it is controlled by pons and may other problems too.

> Option A is Breathing is not controlled properly. Pons control the intensity of breathing and if pons get destroyed then breathing will not be controlled properly and therefore, this option is the correct one.

> Option B is Tachycardia. Tachycardia is that condition which makes the heart beat more than 100 times per minute regularly or irregularly and if pons is destroyed then it won't affect the tachycardia and therefore this option is incorrect and it gets eliminated.

> Option C is Die immediately. This option is also incorrect as if pons is destroyed it will first affect the breathing as it is controlled by pons but the person will not die immediately. If breathing will not be under control, death can happen but not immediately and therefore this option is incorrect and it gets eliminated.

> Option is Not much effect, this is an incorrect option since pons control respiration and many other functions and if pons is destroyed then it will effect on breathing and many other problems and therefore it has much effect and this option is incorrect and it gets eliminated.

Hence, the correct answer is option (A).

Note: Pons is a group of nerves which controls the rate of respiration or you can say it is a part of the brain and mainly brain stems which plays an important role in controlling breathing, involuntary actions, sensory roles in hearing, etc. If it is destroyed then it will affect the respiration and it will cause much effect on that.