Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Skeletal and Muscular System
Transcript
Skeletal and Muscular System BY ADAM, TYLER, CHRISTOPHER AND KENDRICK Skeletal System Functions Support : Our bones provide the rigidity we need to function Protection : The rigidity of our bones allow them to protect our internal organs from damage, for example the rib cage and the skull. Movement : Without the strength of our bones we wouldn’t be able to move our muscles are anchored to our bones. Storage : Our bones are a storehouse for fat and certain essential minerals. Blood Cell Formation : Most of our blood components are made in the bones. Skeletal System Cells Osteongenic Cells : Produce osteoblasts Osteoblasts : Are bone building cells. Osteocytes : Are mature bone cells and are the main cells in bone tissue Osteoclasts : Huge cells derived from monocytes Resorption : Is the breakdown of the bone Skeletal System Diagram Muscular System The 650 muscles in the body not only support movement — controlling walking, talking, sitting, standing, eating and other daily functions that we consciously perform — but also help to maintain posture and circulate blood and other substances throughout the body, among other functions. The nervous system controls the actions of the muscles, although some muscles, including the cardiac muscle, can function independently. Skeletal muscles are the only voluntary muscle tissue in the human body and control every action that a person consciously performs. Most skeletal muscles are attached to two bones across a joint, so the muscle serves to move parts of those bones closer to each other. The heart’s natural pacemaker is made of cardiac muscle that signals other cardiac muscles to contract. Muscular System Cells Different types of cells: A) skeletal muscle cell (rhabdomyocyte) voluntary, affect locomotion B) cardiac muscle cell (kardiomyocyte) - involuntary, structure is similar to skeletal muscle cell C) smooth muscle cell (leiomyocyte) - involuntary, walls of organs and in skin Muscular System Diagram
