https://padlet.com/Sergio_Prieto/Skeletal_System Description on skeletal system. en-us 2016-04-16 01:49:20 UTC 2026-03-17 02:39:53 UTC hello@padlet.com https://padlet-assets.storage.googleapis.com/portrait/soccer_kick.jpg Sergio_Prieto https://padlet.com/Sergio_Prieto/Skeletal_System/wish/106112645

]]> 2016-04-16 01:56:23 UTC https://padlet.com/Sergio_Prieto/Skeletal_System/wish/106112645 Sergio_Prieto https://padlet.com/Sergio_Prieto/Skeletal_System/wish/106112663 The skeletal system performs vital functions such as support, movement, protection, blood cell production, calcium storage and endocrine regulation, that enable us to survive. The organs of the skeletal system are the bones, ligaments, tendons, and cartilages. The most important organ of the skeletal system is the bones. Human skeleton is made up of 206 bones that in coordination not only provides support and protection to the viscera, but also produces blood cells for the body from the bone-marrow. The ligaments are made of fibrous collagen tissue that attaches one bone to another bone. This attachment forms into joints and allows the bone to move in a particular direction and hence enhances the movement of body parts in a desired direction, such as hips, elbow, knees and wrist. Similar to ligaments, tendons are important skeletal system organs which join the muscles to the bones, and they are more flexible to provide greater range of movement. The contraction of tendon pulls the end of bone to, which it is attached, and makes that bone to move while walking and running. The flexibility of tendons make them more prone to injuries and infections.
Another organ of skeletal system is the cartilage, which is a soft and flexible connective tissue. Cartilage not only plays a role in maintaining and forming the shape of human ear and nose as well as other organs, but also protects the bones against friction in the body.  The cartilages can also get damaged or infected, causing the joint to be swollen and tender. he interaction between the skeletal system and the muscular system is so constant that sometimes the two organ systems are referred to as one system--the musculoskeletal system. Skeletal muscles must be attached to something at either end to give them support while they contract. Typically this means each end of a skeletal muscle is attached to a bone. The skeletal system is important to the composition of the blood in our body.  Inside the bones is a substance called bone marrow. Bone marrow is responsible for making new blood cells. Red blood cells are needed for the transport of oxygen throughout the body. White blood cells play a critical role in the immune system. When people move their arms, legs or any other part of their bodies, it's not because they tell their bones to move, it's because they tell their muscles, which are attached to their bones, to move. Bones are strong and rigid, and built to withstand a lot of force and in fact, are stronger than steel. But, surprisingly, they are not the hardest substance in the body. The strongest substance are our teeth.]]> 2016-04-16 01:56:58 UTC https://padlet.com/Sergio_Prieto/Skeletal_System/wish/106112663 Sergio_Prieto https://padlet.com/Sergio_Prieto/Skeletal_System/wish/106131512 1.http://www.livestrong.com/article/77827-skeletal-system-works-other-systems/ 
2. http://www.livescience.com/22537-skeletal-system.html ]]> 2016-04-16 14:30:32 UTC https://padlet.com/Sergio_Prieto/Skeletal_System/wish/106131512