Question

In: Anatomy and Physiology

post and pre exercise and how it affects the lungs

post and pre exercise and how it affects the lungs

Solutions

Expert Solution

Post and pre exercise affects our ventilation pattern. We know that lungs is the basic structure that helps in respiration and the most responsible for providing the necessary oxygen for the body tissues to function. In pre exercise state the body is somewhat in aresti g condition. So the body needs are less and the ventilation is in a reduced pattern so as to supply enough oxygen to tissues. In the slow pattern the diaphragm contracts very slowly and the tidal volume which we breath in will be in the range of 500ml.

In post exercise the body becomes exhausted. The body tissue have a situation of oxygen debt. Due to the lack of oxygen supply the body should have gone for anaerobic respiration. Due to the working of the cells more CO2 is present in blood. We know that a breath is stimulated by the increase in amount of CO2 in blood. So the CO2 level is high. So it will trigger a response to breath and the oxygen debt is more. So to compensate btge diaphragm will contact more and the usual tidal volume increases a lot. Chest raises a lot with the contraction of external intercostal muscles. The oxygen debt makes the lungs to increase the breathing so that the breaths per minute increases and the pressure within the lungs is much less during inhalation to take more air. This is a compensation mechanism for the oxygen supply after exercise.


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