Describe the main organs involed in the skeletal system
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Where are you sitting? Can you feel the chair under your hip bones? Now consider why you don't just flop over. What is preventing you from turning into a pool of jelly on the floor? The answer is your skeletal system, or all the bones and connective tissue in your body that helps to hold you up.
However, you might be surprised to learn that the skeletal system does more than just provide structure. The skeletal system is imperative for movement as well. It also helps create the red blood cells that carry oxygen around your body, allowing you to make energy and stay alive. Today, we're going to look at the four main organs of the skeletal system: bones, cartilage, ligaments, and tendons.
Bones
Take a minute and press on one of the bones in your body. Bones seem pretty solid, and even with a rough fall, they still stay intact most of the time. However, bones aren't just solid pieces of tissue. Bones are living, breathing organs that grow and change, just like the rest of your body.
Bones are made of cells, primarily osteocytes. Most bones have a hollow center filled with bone marrow. The osteocytes are arranged into groups called osteons that surround the bone marrow in circles. The bone cells secrete a calcium matrix, made of calcium, proteins, and phosphorus that create the solid bone we are familiar with.
Structure and Support
The main job of the bones is to provide structure and support for your body. Bone cells called osteoblasts produce new bone and keep it hard. This hard structure is used to keep us standing and support our organs.
Take your rib cage for example. Inside your rib cage are delicate lungs. Lungs have no muscle and are made of a soft, spongy tissue. Your rib cage prevents any impact to your chest from puncturing the lungs. Your skull serves a similar purpose for your brain. The brain is a soft, spongy tissue in need of a solid case to protect it, much like your phone case protects your phone from damage.
Movement
Now, let's look at the skeletal muscles. Our skeletal muscles are anchored to our bones for movement. When the muscles contract, or shorten, they cause our bones to move with them, since they are anchored together. The
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Answer:
skull, ribcage, back bone or vertebra, hip bone, femur, etc