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A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This
- Option 1)
acts as a reserve during muscular exercise.
- Option 2)
raise the
of blood to 75 mm of Hg.
- Option 3)
is enough to keep oxyhaemoglobin saturation at 96%
- Option 4)
helps in releasing more
to the epithelial tissues.
Answers (1)
As we learnt
Coordination -
Coordination is the process through which two or more organs interact and complement the functions of one another.
- wherein
For example, when we do physical exercises,the energy demand is increased for maintaining an increased muscular activity. The supply of oxygen is also increased. The increased supply of oxygen necessitates an increase in the rate of respiration, heart beat and increased blood flow via blood vessels. When physical exercise is stopped,the activities of nerves, lungs, heart and kidney gradually return to their normal conditions. Thus, the functions of muscles, lungs, heart, blood vessels, kidney and other organs are coordinated while performing physical exercises. In our body the neural system and the endocrine system jointly coordinate and integrate all the activities of the organs so that they function in a synchronised fashion.
Venous blood is saturated with large proportion of oxygen (75%) which is left unused and thus, acts as reserve during muscular exercise.
Option 1)
acts as a reserve during muscular exercise.
Correct
Option 2)
raise the of blood to 75 mm of Hg.
Incorrect
Option 3)
is enough to keep oxyhaemoglobin saturation at 96%
Incorrect
Option 4)
helps in releasing more to the epithelial tissues.
Incorrect
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