GENERAL ANATOMY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The depth of breathing increases and the breathing rate increases
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The breathing rate increases but not the depth of breathing
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The depth of breathing increases but not the breathing rate
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Detailed explanation-1: -When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute (12 litres of air) when you are resting, up to about 40–60 times a minute (100 litres of air) during exercise.
Detailed explanation-2: -Final Answer: Rate and depth of respiration shall increase when CO2 concentration increases.
Detailed explanation-3: -When you are exercising, your muscles need extra oxygen-some three times as much as resting muscles. This need means that your heart starts pumping faster, which makes for a quicker pulse. Meanwhile, your lungs are also taking in more air, hence the harder breathing.
Detailed explanation-4: -Exhale from your mouth, and then inhale again through your nose, feeling your stomach rise each time. If possible, hold your breath for 7 seconds, and breathe out for 8 seconds. You should contract your abdominal muscles to push all the air out of your lungs. Repeat 5 times.
Detailed explanation-5: -Sensors in the brain and near blood vessels detect carbon dioxide and oxygen levels in your blood. Sensors in your joints and muscles detect the movement of your arms or legs. These sensors may play a role in increasing your breathing rate when you are physically active.