Compléter The skeletal System functionsVersion en ligne This game will help the retain the information learned about the functions of the skeletal system par Leah Lloyd 1 form protect spinal vertebrae lungs shape framework form heart shape homeostasis The skeletal system gives and to the body . Without the skeletal components , we would appear as big " blobs " inefficiently " oozing " around on the ground . Besides contributing to and , our bones perform several other functions and play an important role in . Bones provide a rigid that supports the soft organs of the body . Bones support the body against the pull of gravity , and the large bones of the limbs support the trunk when standing . The skeleton protects the soft body parts , The fused bones of the cranium surround the brain to make it less vulnerable to injury . The surround and the cord . the bones of the rib cage help protect the and in the thorax . 2 muscle Calcium pivots movement yellow together bones matrix bars force weight marrow Bones provide sites for attachment . Bones and muscles work to as simple mechanical lever systems to produce body . A mechanical lever system has four components : a rigid bar , a pivot or fulcrum , an object or weight that is moved , and a force that supplies the mechanical energy for the movement . In the body , bones are the rigid , the joints between the bones are the , the body or part of it is the that is moved , and the muscles supply the . The intercellular matrix of bone contains large amounts of calcium salts , the most important being calcium phosphate . is necessary for vital metabolic process . When blood calcium levels decrease below normal , calcium is released from the so that there will be an adequate supply for metabolic needs . When blood calcium levels are increased , the excess calcium is stored in the bone's . Storage and release are dynamic processes that go on almost continually . Bone tissue contains lesser amounts of other inorganic ions such as sodium , magnesium , potassium and carbonate . Fat is stored in the bone . 3 yellow infant marrow red hematopoiesis marrow storage spongy Blood cell formation , called , takes place mostly in the bone of bones . Red marrow is found in the cavities of most bones in an . With age , it is largely replaced by for fat . In the adult , red marrow is limited to the bone in the skull , ribs , sternum , clavicles , vertebrae , and pelvis . Red marrow functions in the formation of erythrocytes , leukocytes , and thrombocytes
Créer jeu