Question

Distinguish between IRV and ERV.​

Answer 1

The difference between IRV and ERV is a matter of inhalation (breathing in) and exhalation (breathing out).

Step-by-step explanation:

IRV, or inspiratory reserve volume, is the maximum volume of air that can be inhaled after a normal inhalation is complete. (The volume of additional air inhaled after a normal inhalation).

ERV, or expiratory reserve volume, is the maximum volume of air that can be exhaled after a normal exhalation is complete. (The volume of additional air exhaled after a normal exhalation).

Hope this helps <3.

Answer 2

Inspiratory Reserve Volume (IRV) and Expiratory Reserve Volume (ERV) represent the additional air that can be inhaled and exhaled, respectively

Step-by-step explanation:

Definition:

Inspiratory reserve volume (IRV) is the additional amount of air that can be inhaled after a normal inhalation. It is the amount of air that is available to be inhaled during deep breathing.

Expiratory reserve volume (ERV) is the additional amount of air that can be exhaled after a normal exhalation. It is the amount of air that is available to be exhaled during forced expiration.

Now,

`\boxed{\textsf{Difference between IRV and ERV in points:}}`

Inspiratory Reserve Volume (IRV):

• Definition: The additional amount of air that can be inhaled after a normal inhalation.
• Volume: Typically around 2500-3500 mL.
• Function: Allows for deeper breathing during exercise or times of increased oxygen demand.
• Significance: Important for gas exchange and maintaining lung health.

Expiratory Reserve Volume (ERV):

• Definition: The additional amount of air that can be exhaled after a normal exhalation.
• Volume: Usually about 1000-1200 mL.
• Function: Enables the removal of more air from the lungs during activities like coughing or sneezing.
• Significance: Important for gas exchange and removing irritants from the lungs.

In summary, Inspiratory Reserve Volume (IRV) and Expiratory Reserve Volume (ERV) represent the additional air that can be inhaled and exhaled, respectively, after a normal breathing cycle. They play crucial roles in adapting to varying oxygen demands and maintaining lung function.