0
00:00:00,000 --> 00:00:02,000
You

1
00:00:10,000 --> 00:00:14,000
Breathe in breathe in out. That's what I say throughout

2
00:00:14,000 --> 00:00:18,000
Breathe in breathe in out. That's what I say throughout

3
00:00:20,000 --> 00:00:21,000
you

4
00:00:21,000 --> 00:00:25,000
Hmm. Oh, so you've been watching me work out a

5
00:00:25,000 --> 00:00:32,000
Rather breathe in and breathe out. Oh, this is tiring.

6
00:00:32,000 --> 00:00:38,000
So anyways, why don't we talk about breathing today? Still can't get a hint?

7
00:00:39,000 --> 00:00:43,000
Well today we talk about the human respiratory system

8
00:00:44,000 --> 00:00:45,000
Zoom in

9
00:00:45,000 --> 00:00:52,000
All right, do this right now. I'm watching you. Just start running wherever you are

10
00:00:53,000 --> 00:00:58,000
Run run run run run run now stop

11
00:00:59,000 --> 00:01:01,000
Isn't your breathing heavy?

12
00:01:01,000 --> 00:01:07,000
well, that's because right now your body needs more oxygen to breathe and

13
00:01:07,000 --> 00:01:11,000
You get oxygen from the air around you

14
00:01:11,000 --> 00:01:19,000
Without oxygen you'd be like a car without fuel a waterless pool and wouldn't that be uncool?

15
00:01:20,000 --> 00:01:23,000
One of the major reasons why you're alive is

16
00:01:24,000 --> 00:01:28,000
Oxygen so take a deep breath in

17
00:01:30,000 --> 00:01:34,000
When you breathe in you take in oxygen present in the air

18
00:01:35,000 --> 00:01:38,000
The air then passes through your nostrils

19
00:01:39,000 --> 00:01:43,000
There are tiny hair present in your nostrils that obstruct

20
00:01:43,000 --> 00:01:45,000
All

21
00:01:46,000 --> 00:01:48,000
The dust particles

22
00:01:48,000 --> 00:01:53,000
Then the air travels to the windpipe also called the trachea

23
00:01:54,000 --> 00:01:56,000
Which filters the air inhaled?

24
00:01:57,000 --> 00:02:01,000
The trachea branches out to two tubes called bronchi

25
00:02:02,000 --> 00:02:08,000
Where tiny hair called cilia move back and forth moving the mucus inside

26
00:02:08,000 --> 00:02:15,000
The mucus is a sticky substance that collects germs and other particles that might harm the lungs

27
00:02:16,000 --> 00:02:23,000
The bronchi then carry air into each lung the right lung has three lobes

28
00:02:23,000 --> 00:02:26,000
Whereas the left lung has two lobes

29
00:02:27,000 --> 00:02:32,000
The left lung is slightly smaller in size to give space to the heart

30
00:02:32,000 --> 00:02:38,000
These lobes are filled with small and spongy air sacs called alveoli

31
00:02:38,000 --> 00:02:43,000
Where the exchange of oxygen and carbon dioxide happens?

32
00:02:43,000 --> 00:02:49,000
It is here the blood picks up oxygen and lets go of carbon dioxide

33
00:02:50,000 --> 00:02:55,000
Just beneath the lungs. There is a dome-shaped muscle called diaphragm

34
00:02:56,000 --> 00:02:58,000
that contracts when you breathe in and

35
00:02:59,000 --> 00:03:01,000
Expands when you breathe out

36
00:03:02,000 --> 00:03:07,000
It also separates the chest cavity from the abdominal cavity

37
00:03:08,000 --> 00:03:10,000
Trivia time

38
00:03:11,000 --> 00:03:16,000
The lungs are the only organs that can float on water

39
00:03:16,000 --> 00:03:18,000
A person breathes approximately

40
00:03:19,000 --> 00:03:21,000
20,000 times in one day

41
00:03:22,000 --> 00:03:26,000
So friends didn't you just gasp and grasp all the facts?

42
00:03:26,000 --> 00:03:32,000
Tune in next time for more fun facts. This is me zooming out