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Worksheets13.04 - Lungs and Exercise: IOHA ICA
Total questions: 1
Worksheet time: 21mins
1-15.
Answer the questions below after watching the video
How much can pulmonary ventilation increase during maximal exercise?
Up to 10 fold
Up to 20 fold
Up to 5 fold
Up to 30 fold
What is the main muscle involved in breathing?
The heart
The diaphragm
The intercostal muscles
The abdominal muscles
What increases during exercise to meet the body's oxygen demand?
Heart rate only
Respiratory rate only
Both respiratory rate and volume of air per breath
Neither, the body uses less oxygen
What is the role of the alveoli in the respiratory system?
To facilitate gas exchange
To produce carbon dioxide
To store oxygen
To pump blood
What happens to the diaphragm during inhalation?
It relaxes and pulls downwards
It contracts and moves upwards
It contracts and pulls downwards
It relaxes and moves upwards
What happens to oxygen consumption during maximal exercise in a fit individual?
It remains the same
It decreases
It increases significantly
It increases slightly
How does the body compensate for increased oxygen demand during exercise?
By decreasing heart rate
By increasing lung capacity
By increasing respiratory rate and volume of air per breath
By reducing oxygen consumption
What is the maximal oxygen consumption of a marathon runner during exercise?
5100 milliliters per minute
4000 milliliters per minute
250 milliliters per minute
3600 milliliters per minute
Is total lung capacity a limiting factor in oxygen delivery during maximal exercise?
Only at high altitudes
No, not even close
Yes, always
Only in untrained individuals
Can exercise increase the size of the thoracic cavity?
No, it remains the same
Yes, significantly
Only with specific exercises
Only in children
What is the major bottleneck in oxygen delivery during maximal exercise?
The alveoli
The heart
The diaphragm
The lungs
What is the primary reason the lungs are overbuilt?
To increase with age
To allow for growth
To compensate for diseases
To provide a reserve for extreme conditions
Can lung adaptation improve oxygen diffusing capacity?
Yes, as shown in lab studies
Yes, but only in elite athletes
No, because the lungs do not adapt
No, it's not possible
What structural change occurs in the heart with exercise?
It gets stronger and pumps more blood per beat
It pumps less blood per beat
It stops adapting
It decreases in size
Which muscles get stronger with exercise, aiding in breathing?
Breathing muscles like the diaphragm and intercostals
Arm muscles
Neck muscles
Leg muscles
