EMBRYOLOGY
RESPIRATORY SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
When J.J. goes chasing Pokemon, his breathing rate increases to supply his big muscles with more oxygen. Which system works directly with his breathing, to ensure his muscles receive the extra oxygen?
|
|
circulatory
|
|
|
muscular
|
|
|
excretory
|
|
|
digestive
|
Explanation:
Detailed explanation-1: -Your blood picks up oxygen as it travels through your lungs and delivers it to the muscles you’re using. As your level of activity increases, your breathing rate increases to bring more air (oxygen) into your lungs so that your lungs can pump more oxygen into your blood and out to your muscles.
Detailed explanation-2: -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.
There is 1 question to complete.