Lung volume

Question 1

Justify why tidal volume increases during exercise.

Answer 1

To match the vital capacity. It is also so the muscles can get a sufficient amount of oxygen to perform set techniques in the sport.

Question 2

State the lung volumes that decrease.

Answer 2

IRV and ERV

Question 3

Describe how the diaphragm and the intercostal muscles affect the tidal volume during exercise.

Answer 3

The diaphragm and the intercostal muscles causes the rate of tidal volume to increase as the breathing rate increases.

Question 4

Discus the benefits of the IRV and ERV decreasing.

Answer 4

This means the lungs will be exhaling and inhaling to their limit. This then causes a small amount of air to be left behind in the lungs.

Question 5

Justify why the residual volume will remain the same during exercise.

Answer 5

Residual volume will remain the same during exercise as it is amount of air left from the maximal breath. This means that the the amount of air left in the lungs can’t be decreased as the lungs are exhaling to their limit so no more air can be lost.