The Lymphatic System | Health | Biology | FuseSchool
The Lymphatic System | Health | Biology | FuseSchool
Did you know your body has its own version of a sewer system, for removing unwanted toxins, waste and excess water from the body? This is called our lymphatic system.
Like our blood circulation, the lymphatic system is made up of millions of little vessels that branch all around our body. But whereas arteries and veins carry blood, the lymphatic vessels are much, much finer and carry a colourless fluid called lymph.
Our lymphatic system has 3 main duties:
(1) It contains white blood cells called lymphocytes, which are used to fight infection;
(2) It acts as a one way drainage system, transporting fluid from body tissues into the blood circulation;
(3) It gets rid of waste products produced by cells.
As blood circulates the body, plasma leaves the blood vessels and travels into the body tissues, delivering food, oxygen and hormones to the cells. This plasma becomes tissue fluid, and surrounds all of our body’s tissues. It then collects waste products, excess water and toxins from the cells.
90% of this fluid passes back into the blood circulation; however, 10% of the fluid is left behind and is known as lymph. We therefore need a system to drain this lymph fluid, so that we don’t end up as a swollen fluid filled balloon - hence the lymphatic system... The lymph fluid drains into lymph vessels, where it then travels to lymph nodes, which are found all around your body.
To stop back-flow, the lymph vessels have one-way valves and muscular walls that contract to force the lymph forward. This is happening in millions of little lymphatic vessels in your body every minute of every day!
The lymph nodes filter the lymph, destroying or trapping anything harmful. The lymph nodes contain white blood cells called lymphocytes, which attack and break down bacteria, viruses, damaged cells or cancer cells. This filtering and destroying is an important part of our immune system, and stops nasty substances from being fed back into our bloodstream which would make us sick.
The waste products and destroyed bacteria are then carried in the lymph fluid through larger lymph vessels up to your neck, where the thoracic duct empties the lymph back into the blood circulation. The bloodstream then removes the waste products from the body, as it does with other waste.
As well as the lymph fluid, lymph vessels and lymph nodes, our lymphatic system also includes a few organs: the spleen, thymus, tonsils and adenoids.
They all have roles in helping our body fight off infections.
Unfortunately, like any sewer system, things can go horribly wrong. Sometimes we get infections that cause the pumping to break down. This can cause your arms or legs to swell to huge proportions.
Sometimes the debris or other bad substances can make it past lymph nodes. Sometimes cancer cells do this and spread the cancer to other parts of the body, which obviously isn’t good.
For now, we wish you all the best for your lymphatic health - which you can help maintain by drinking lots of water and exercising. KEEP ON PUMPING!
CREDITS
Animation & Design: Joshua Thomas jtmotion101@gmail.com
Narration: Dale Bennet
Script: William Haines
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Пікірлер: 312
Science Teacher: *Shows the vid to class to explain what lymphatic system is* Me: I see now, so you've finally concede and acknowledge the fact that youtube videos are best teachers
@anushkaachlerkar3566
2 жыл бұрын
True
beat in the background slaps so hard i couldn't concentrate
@gl1zy
3 жыл бұрын
No cap
i had a very hard time understanding this system. thank you for clearing it out! :)
@fuseschool
3 жыл бұрын
No worries! Glad we could help!
@krishnauprety3180
3 жыл бұрын
I
This is the 3rd video I'm watching to help me grasp the concept of the lymphatic system. And although the other "crash courses" were really good, this one is by far the best! Thankyou!
@fuseschool
4 жыл бұрын
Thank you! Glad it was helpful!
The lymphatic vessels actually do not have muscular tissue and do not contract on their own. Lymph vessels are however in between muscles and next two veins/arteries so lymph gets moved by indirect contraction of those muscles/arteries around them.
@aniqilham2346
3 жыл бұрын
Ooh, ya2
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@fuseschool
3 жыл бұрын
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@fuseschool
4 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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This is the best and the easiest to understand video on lymph. Thanks for it. It will save many lives as I am an industrial designer making a wound management device.
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3 жыл бұрын
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3 жыл бұрын
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@fuseschool
4 жыл бұрын
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@fuseschool
4 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
True
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3 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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I finally understood lymphatic system! All thanks to you :)
@fuseschool
3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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THANKS A LOT
Great video. But lymph nodes have no pump
Great job on the high quality video. I would, however, point out that the animated lymphocyte was ingesting a pathogen, when in reality, that’s the job of the phagocytes. Just in case a student might confused. Thank you!
@fuseschool
4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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@fuseschool
3 жыл бұрын
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3 жыл бұрын
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@fuseschool
3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
:)
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4 жыл бұрын
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@fuseschool
4 күн бұрын
happy to hear you found the video helpful. Check out more of our videos and let us know what you think!
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4 жыл бұрын
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4 жыл бұрын
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4 жыл бұрын
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If you'll excuse me, I'll be draining my lymph.
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3 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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@fuseschool
3 жыл бұрын
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@NehaGupta-sj2os
3 жыл бұрын
Thank you
@fuseschool
3 жыл бұрын
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@fuseschool
4 жыл бұрын
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4 жыл бұрын
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@fuseschool
4 жыл бұрын
Glad to hear that!
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@fuseschool
3 жыл бұрын
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@fuseschool
4 жыл бұрын
:)
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@fuseschool
4 жыл бұрын
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@fuseschool
3 жыл бұрын
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4 жыл бұрын
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@fuseschool
3 жыл бұрын
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@fuseschool
4 жыл бұрын
:)
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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4 жыл бұрын
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3 жыл бұрын
Thank you so much 🙂
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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3 жыл бұрын
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