PPT-How does a muscle work? Remember, muscles can only contract so they can only

pull not push And it needs certain parts to do this Microscopic anatomy of muscle The bits and pieces Sarcolemma plasma membrane of a muscle cell Myofibrils long ribbonlike organelles that take up the majority of the space in a muscle cell. Objective. : To learn the structure and function of the Muscular System. Bell Work. : . Put the terms in the correct order from most simple to most complex: . SKELETAL MUSCLE. STRIATED MUSCLE CELL. MUSCULAR SYSTEM. The . sliding . filament theory . of . muscle contraction. Gross . and microscopic structure of skeletal muscle. The . ultrastructure. of a myofibril.. The . roles of . actin. , myosin, calcium ions and ATP in myofibril contraction.. Your Muscles. Functions of the Muscular System. A . muscle. is made of strong tissue that can contract in an orderly way.. When . a muscle contracts, the cells of the muscle become shorter.. When a muscle relaxes, the cells return to their original length.. http://glencoe.mcgraw-hill.com/sites/007874184x/student_view0/brainpop_movies.html#. Organs and Functions . Because of the way we usually see bones, it’s easy to think of them as dry and lifeless. . Types of Muscle Tissue . (cont.). Muscle Group. Major Location. Major . Function. Mode of Control. Skeletal Muscle. Attached to bones and skin of the face. Produces body movements and facial expressions. As it contracts it . -causes movement. -maintains posture. -stabilizes joints. -and generates heat. . Muscle Types. Skeletal muscle (voluntary). muscle attached to the skeleton. cells are long, striated, and multinucleate. Skeletal – striated & voluntary. Smooth – involuntary. Cardiac - heart. The word “striated” means striped. . Muscles and Muscle Fiber. Structure.     . Muscles are composed of many . perfomance. enhancing drugs?. 2. Would . you consider supplements such as . Creatine. to be a performance enhancing drug? Why or why not?. The Muscular System. A&P Fall 2016. I. Overview of Muscle Tissues. perfomance. enhancing drugs?. 2. Would . you consider supplements such as . Creatine. to be a performance enhancing drug? Why or why not?. The Muscular System. A&P Fall 2016. I. Overview of Muscle Tissues. ~What are the structures of the muscular system?. The muscular system…. Contraction of muscles gives the body the ability to move. Nearly ½ of the body’s weight comes from muscles. There are over 650 different muscles in the human body. Energy Sources for Contraction. ATP is the supplied energy for muscles. Can only supply enough for a short period of time. ATP is generated from . Creatine. Phosphate. Contains high energy phosphate bonds . WARM-UP. Complete the BONES QUIZ. BONUS QUESTION! (WORTH ONE POINT). NAME ONE TYPE OF . MOVABLE JOINT. MUSCLES. A MUSCLE IS AN . . ORGAN THAT CAN RELAX AND CONTRACT. PROVIDES THE FORCE TO MOVE YOUR BODY PARTS. The tongue is the strongest muscle in the body (relative to size). There are about 640 skeletal muscles in the human body. It takes twice as long to lose new muscle if you stop working out than it did to gain it.. COACH WILLIAMS. What is MUSCLE?. Tissue that makes the body move.. Network of muscles include:. Voluntary muscles – muscles that must be told to move. Involuntary muscles – muscles that move on their own.