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Skeleton Video 1

Added Nov 05, 2014 •

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hi I'm Kathy Bertram to real-world science real website people can use their bodies many different and it sounded same way how does it work well that's what this program is all about to get ready to explore your body skeletal and muscular systems patience  when you think about it you are body can move in many different two body systems work together very closely to help us to move when we're running jumping throwing or swimming your body skeletal and muscular system  did you ever see building being built with steel girders deal pieces are joined together to create a strong frame by the time the building is completed however you can longer see the framework  people having inner framework to one that is made of Bones all of our bones together are called a skeleton this one an adult has a total of 206 bones bones has many purposes and support many functions of the body provide shape to your body without your skeletal system you'd be as Flappy as this water balloon just a soft blob and skin and stuff some bones make your background which is also known as the vertebral column can you support without those small bones called vertebrates he couldn't stand upright are there bones protect your soft and delicate internal organs especially like your brain and lungs your skull act like a hard helmet to protect your brain your ribs act as protective armor for your heart and lungs  because your bones are held together by joint you have the ability to move skeletal bones in your arms and legs for example are controlled by your muscles when these muscles pull on Bones one way or another they make without bones you could walk talk or wheeze your bones also provide another incredibly important but not so obvious function bones produce blood cells and they also store minerals and other materials your body needs  you've heard the how does the rock well what makes rocks hard are the minerals that are compressed tightly in the rock those are hard because they're also made up of tell me two of them phosphorus and calcium  when most people think of Bones they think of this hard make list Rock like material that we seen a skeleton as a matter of fact the word skeleton comes from a Greek word meaning a dry body but reality the bones that make up your skeleton are living Oregon let's take a closer look at the bones that make up our skeletal system in addition to Mineral of bone consists of connective tissue connective tissue is in a body tissue that holds things together if we were to look closely at a bone we see a tough layer or membrane covering all of them except the end blood vessels and nerves we've been through this membrane beneath the membrane bone tissue that is hard and death it's called compact bone  small canals carry blood vessels and nerves from the bone surface to the living cells within the another form of Bone tissue is called spongy bone because it has many small spaces like a sponge spongy bone is lightly and and provide support for the rest of the bone  spaces in bone contain two kinds of soft jelly-like tissue called marrow red bone marrow produces the body's blood cells yellow bone marrow stores fat and serves as an energy Reserve did you ever notice that you can bend the tip of your ear and move your nose from side to side the flexible material beneath your skin in these areas is called cartilage is a connective tissue that is more flexible than bone  Smokey Bones in your skeleton beginners cartilage but as you grow the cartilage is replaced with bone hear X-rays of hands of a one-year-old a three-year-old and a teenage notice that the replacement of cartilage by bone is almost complete  some cartilage however never changes to phone how do junior need for example this act like a cushion that keeps your femur bone from rubbing against the bones in your lower leg I'm sure you've heard the song your hip Bone's connected to your thigh bone your side was connected to your whatever you got the picture the place where bones connect or come together is called a joint there are two kinds of joints in your body immovable joints and movable some bones like the bones of the skull are connected in a way that allow for little or no movement they're called immovable or joint  the joints that attach the ribs to the sternum are also in movable  most of the joints in the body are movable and they allow your body to move in a variety of wait there are different types of joints for different types of moving there's a hinge joint that works like the hinge of a you're ever with a hinge joint that allows you to bend and straighten your arm your knee is also a hinge joint that allows you to bend and straight can you like  your hips and shoulders are ball-and-socket joints these operate like a joystick of a computer game the top of your arm fits into the deep socket of the shoulder blade and allows you to swing your arm in a circle your shoulder joint moves in more different ways than any other joint in your body another kind of joint found in the body is called a gliding joint gliding joints allow one going to slide over another for example the gliding joint in your wrist Ally black  your neck can swivel or pivot because of a pivot joint a pivot joint allows one bone to rotate around another  all in all there over 200 movable and semi movable joints in your body joints are held together with strong elastic bands of connective tissue called ligaments so it's important to keep the bones of your skeleton healthy how do you do that first you should eat a balanced diet dairy products such as milk cheese and yogurt are good sources of calcium and phosphorus the two minerals that make up your bones whole green and leafy green vegetables like spinach are also good sources of calcium you also have to exercise to keep your bones healthy when you play basketball or even take a walk your bones are supporting the weight of your entire body and that helps phone stronger and faster  as people become older their bones begin to lose the minerals this lots of minerals can lead to ask you the condition in which your bones become weak and can break easily  exercise and eating foods that contain lots of calcium lie you're still growing can help prevent osteoporosis  how can I be injured just like any other part of your body the most common types of bone injuries are free dislocation and sprains  a fracture is a break or crack in the bone like the one shown in this x-ray a bone becomes dislocated when it comes out of its joint I've seen in his X-ray and a sprain occurs when a ligament is stretched you can help prevent these injuries by warming up properly before exercising when you warm up your joints become more facts about helping to prevent a sprain or dislocation wearing the correct protective equipment and playing in safe locations can also help prevent

Uploaded by Renee Klein.

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Skeleton Video 1

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