In: Biology
Answer 2.
The lung works by expanding and contracting when you inhale or exhale respectively. The rib cage and diaphragm play a major role in providing room for the expansion of the lungs. Deformation in rib cage muscles which fails in the expansion of it or failure of lowering of diaphragm might lead to a lower volume of air inside lungs.
Answer 3.
The vital capacity (VC) is the total exchangeable air in the system and is calculated by adding together tidal volume, inspiratory reserve volume, and expiratory reserve volume.
Respiratory Volumes |
Description |
Normal adult values |
Tidal Volume (TV) |
Volume of a resting breath |
500 mL/breath |
Inspiratory Reserve Volume (IRV) |
Maximum volume that can be inhaled after a normal inhale |
1900 – 3300 mL |
Expiratory Reserve Volume (ERV) |
Maximum volume that can be exhaled after a normal exhale |
700 – 1200 mL |
Vital Capacity (VC) |
TV + IRV + ERV |
3000 – 4600 mL |
In given case VC comes near about=3800 ml(500+600+2700), In obstructive pulmonary disorders, it develops the resistance to airflow, thus increasing the time it takes to move air in and out of the lungs. Examples of obstructive disorders include bronchitis and asthma.
From the results, it can be inferred the patient is prominent to develop obstructive disease as his ERV falls below given standard value