00:01
Hello students in this question we are given about some questions of respiration and pulmonary circulation.
00:10
The first question is about capillary reabsorption.
00:15
So usually what happens in capillary reabsorption is there is decrease in plasma albumin due to liver disease.
00:27
That reduces the reabsorption in capillaries.
00:31
So, when there is decrease in albumin, the osmotic pressure also reduces.
00:39
That may happen due to liver diseases mostly.
00:43
And that also, because there is reduction in osmotic pressure, there is reduced amount of capillary resoption.
00:51
So answer is option b.
00:54
The next question is about circulation of oxygen to brain.
01:00
So there is so we have to identify which are the which of this is the correct reason so circulation of arterial blood to brain is maintained and constant rate this is correct usually the brain requires good amount of oxygen to function so there has to be a constant rate of circulation of oxygen to the brain so this is correct but sometimes due to more physical activity the oxygen level tends to fluctuate like there'll be 10 times more oxygen supply to brain if there is a moderate physical activity and it's increasing its frequency will increase the oxygen concentration so b is also correct so we have to identify which does not apply to blood circulation so the third option is a few seconds of oxygen restriction will result in consciousness loss of consciousness that is a person may become unconscious.
02:05
The next option is 4 to 5 minutes of anoxia will almost certainly result in brain damage.
02:10
This is also correct.
02:12
But the third option is not correct because this a few seconds may definitely lead to unconsciousness, but it should be more than one to two minutes because less than that also a person can bear...