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Skeletal & Muscular System Skeletal System Function: The skeletal system …. -Holds the body up (structure and shape) -Protects internal organs -Helps the body move -Stores minerals, Calcium, Phosphorus -Makes blood cells PARTS-BONES -make up the skeletal system -Made of living cells and protein fibers - Produce blood cells in the bone marrow - - 206 bones in adult body - - 300 bones in infant (later fuse together) PARTS-CARTILAGE - gives shape -Connects the bones -Supports the body -Softer and more flexible than bone PARTS-LIGAMENTS -holds bones together at the joins -Connects bone to bone -900 ligaments in human body PARTS-JOINTS -place where 2 or more bones connect together -Allow movement PARTS-TENDONS -tough connective tissue that connects bone to muscle http://science.howstuffworks.com/life/6830-humanbody-bone-strength-video.htm MUSCULAR SYSTEM Function The muscular system… -helps you move -helps move blood through the body (arteries/veins/capillaries) -pumps your blood (heart) -helps you breathe (lungs) -moves food through digestive system (stomach, intestines) TYPES OF MUSCLE SMOOTH MUSCLE -tissue in walls of organs, arteries, veins -In the stomach, lungs, and other soft internal organs -Involuntary movement (moves by itself) -Controls the way blood flows through circulatory system TYPES OF MUSCLE SKELETAL OR STRAITED MUSCLE: -attached to legs, arms, back, and torso -Helps to move bones -Voluntary movement TYPES OF MUSCLE CARDIAC MUSCLE: - only in the heart -involuntary movement (moves by itself) CONNECTION TO OTHER SYSTEMS -Skeletal and muscular system work together to help you move -Muscular system works with circulatory system to pump blood through the body -Muscular system works with digestive system to move food through digestion -Muscular system works with respiratory system to exchange gases -Muscular system works with excretory system to eliminate waste -Nervous system controls skeletal and muscular system