Breathing Mechanics and Lung Capacity

The video tutorial explains the mechanics of breathing, highlighting the role of ten muscle groups, including the diaphragm and intercostal muscles. It describes how these muscles work together to expand the chest cavity and lungs, reducing pressure and drawing in air. The tutorial also covers different types of breathing, such as normal and belly breathing, and discusses how training can help maximize lung capacity.

How many muscle groups work together during conscious breathing?

• Five

• Twenty

• Ten

• Fifteen

What is the main muscle used for breathing?

• Pectoral muscles

• Intercostal muscles

• Abdominal muscles

• Diaphragm

Where is the diaphragm located?

• In the arms

• In the neck

• In the lower back

• Between the chest cavity and the abdomen

What muscles move the ribcage during breathing?

• Diaphragm

• Abdominal muscles

• Intercostal muscles

• Pectoral muscles

What happens to the diaphragm during inhalation?

• It relaxes and moves up

• It contracts and moves down

• It relaxes and moves down

• It contracts and moves up

How does the expansion of the lungs affect the pressure within them?

• Has no effect on the pressure

• Increases the pressure

• Decreases the pressure

• Keeps the pressure constant

What percentage of lung capacity is used during normal breathing?

• 75%

• 50%

• 25%

• 10%

What is another term for belly breathing?

• Shallow breathing

• Chest breathing

• Rapid breathing

• Diaphragmatic breathing

What is the term for the maximum amount of air the lungs can hold?

• Vital capacity

• Residual volume

• Total lung capacity

• Tidal volume