1
00:00:00,000 --> 00:00:08,060
If you could take a look inside this person riding the skateboard, you would see an amazing team of different body systems working together.

2
00:00:08,619 --> 00:00:11,859
Welcome to MooMooMath and Science and 11 Body Systems.

3
00:00:12,460 --> 00:00:18,500
There are at least 11 body systems that work together to help keep the human body alive.

4
00:00:19,219 --> 00:00:23,339
Up first, the integumentary system. It consists of our skin.

5
00:00:23,339 --> 00:00:38,020
Our skin is the largest organ of the body. It acts as a barrier which protects us from the outside world, helps prevent water loss, and regulates our temperature along with allows us to touch our surroundings.

6
00:00:38,979 --> 00:00:49,659
The skeletal system is made up of our bones, ligaments which attach bone to bone, tendons which attach muscle to bone, and our joints.

7
00:00:49,659 --> 00:00:54,759
The skeletal system helps with movement and protection.

8
00:00:55,600 --> 00:01:00,619
The muscular system is responsible for movement inside and out of the body.

9
00:01:01,439 --> 00:01:03,060
There are three major types of muscles.

10
00:01:03,679 --> 00:01:06,359
Skeletal muscles, which are muscles attached to bones.

11
00:01:07,299 --> 00:01:13,640
Smooth muscles, which are involuntary muscles found inside the stomach, the intestines, and several other places.

12
00:01:14,340 --> 00:01:18,400
And cardiac muscle, which are muscles of the heart.

13
00:01:19,140 --> 00:01:28,519
The urinary system filters blood through the kidneys where it works to filter out waste and produces urine.

14
00:01:29,040 --> 00:01:38,379
The function of the respiratory system is to exchange oxygen and carbon dioxide between the atmosphere and the blood.

15
00:01:39,439 --> 00:01:42,780
The lungs are a major organ of this system.

16
00:01:44,019 --> 00:01:48,079
The digestive system breaks down food so nutrients can be absorbed by the body.

17
00:01:48,400 --> 00:01:49,959
It has three main functions.

18
00:01:50,480 --> 00:01:54,959
Ingest food, break food down so that nutrients can be absorbed,

19
00:01:55,400 --> 00:01:58,280
and eliminate what can't be digested.

20
00:01:58,620 --> 00:02:03,739
The endocrine system sends chemical messages throughout the body.

21
00:02:04,560 --> 00:02:07,439
This system is composed of glands that produce hormones

22
00:02:07,439 --> 00:02:10,159
that act as chemical messengers of the body.

23
00:02:10,979 --> 00:02:16,719
For example, adrenaline is a hormone that causes you to have a sudden burst of energy.

24
00:02:16,719 --> 00:02:24,120
the reproductive system is responsible for producing offspring the lymphatic system

25
00:02:24,120 --> 00:02:31,060
includes organs and cells that filter lymph and blood and destroy foreign microorganisms

26
00:02:31,060 --> 00:02:36,319
lymph is the fluid that leaks out of the capillaries this fluid circulates among the

27
00:02:36,319 --> 00:02:43,240
tissue cells and is collected by lymphatic vessels and returned to the veins the nervous system

28
00:02:43,240 --> 00:02:49,560
sends electrical signals throughout your body. These signals may cause your arm to move or your

29
00:02:49,560 --> 00:02:55,039
heart to beat. This system is composed of two major divisions, the central nervous system,

30
00:02:55,539 --> 00:03:02,039
which is the brain and the spinal cord, and the peripheral nervous system, which consists of the

31
00:03:02,039 --> 00:03:07,800
nerves that branch out from the brain and the spinal cord. The circulatory system pumps blood

32
00:03:07,800 --> 00:03:14,300
throughout your body. It consists of your heart, veins that carry blood to the heart, arteries that

33
00:03:14,300 --> 00:03:20,539
carry blood away from the heart, and capillaries which connect the veins and the arteries. Thanks

34
00:03:20,539 --> 00:03:25,520
for watching and remember kindness multiplies kindness. Be kind to someone today.