Under ordinary circumstances, the inflation reflex is initiated by a. noxious chemicals, b. the ventral respiratory group, c. overinflation of the alveoli and bronchioles, d. the pontine respiratory centers.

Video transcript

Hello, everyone and welcome to today's video. So, a protective mechanism that regulates the death and rate of breathing is termed as answer choice. A, we have the Herring Brewer reflex, B chemo reflex, C, barrow reflex, D, cough reflex. Let's go over each of our answer choices so that we may solve this problem. First of all, we have B which is a chemo reflex. Now, a chemo reflex is a reflex that responds to changes in the levels of oxygen, carbon dioxide and ph leading to adjustments in the breathing rate and death. Now, what it is involved in regulating breathing, it is not specifically related to a protective mechanism. So it is not really a protective mechanism and therefore, we can cancel it out. Now, we have C which is barrow reflex. This barrow reflex is going to be a reflex that regulates blood pressure in response to blood vessel stretch. So it does not directly regulate death and rate of breathing. So we can cancel it out. Then we have D which is the calf reflex. This cove reflex is a protective mechanism that clears the air waste from irritants or foreign substances will by coughing but it is not related to breathing or the depth of breathing. So we're going to cancel it out. And finally, we have a which is this Herring Brewer reflex. Now, this type of reflex is going to be our correct answer because this is a protective reflex or a protective mechanism that is going to be regulating breathing by inhibiting further inspiration when the lungs, the lungs are over inflated. So this is how this protective mechanism is going to be working. Therefore, we can highlight answer choice. A Harry and Brewer reflects as the final answer to our question. I really hope this video helped you and I hope to see you on the next one.