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Hello friends, welcome to new happy learning video

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Today we're going to learn about the human musculoskeletal system. It's what lets us move around

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The musculoskeletal system is made up of two systems the muscular and skeletal systems

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The muscular system is the active part of the musculoskeletal system

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Muscles are between our bones and skin and they are joined to our bones through tendons.

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They are elastic organs that can be lengthened or shortened causing some body part movements.

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Us humans have approximately 630 muscles.

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According to the movements that they make we can differentiate voluntary and involuntary muscles.

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voluntary muscles move only when we want them to and involuntary muscles move without us

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realizing like our heart or stomach that are always a movement the skeletal system is made

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up of all bones and cartilage the skeleton gives us our shape that differentiates us

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from other living things and allows us to walk run or jump our body has 206

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bones and each one of them has their own name some of them are skull that

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protects our brain the spine that maintains a stable and upright the jaw

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allows us to move our mouths to chew food ribs that protect our heart or

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lungs. And the femur, the longest bone in the human body and is found in our legs.

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Bones are joined with each other by joints. They are divided into three groups, depending

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on their level of mobility. Immobile or fixed joints don't have any mobility, like the ones

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like the ones that join our skull semi-mobile joints do have some mobility but not a lot like

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vertebrae in our backs mobile joints have great mobility like our elbow or knee now we've got to

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know a little more about our musculoskeletal system now we need to do plenty of physical

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exercise to make it work brilliantly and maintain ourselves really healthy goodbye friends and don't

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forget to subscribe to happy learning tv