I will understand the function of the muscular system. MT: Muscular System I will understand the function of the muscular system.
Fxn of Skeletal Muscle: Movement Heat Production Posture
Movement attached to bone contracts thus producing movement Ex: walking, talking, chewing, blinking
Heat Production Reactions during muscle contraction produce heat Heat contributes to constant body temperature (homeostasis of temperature)
Why do we shiver when we're cold? Shivering is a result of muscle contraction. This produces heat thus increasing your body temperature.
Posture Continuous partial contraction of skeletal muscles Allows standing, sitting, and maintaining a stable body position while walking, running, and all other movements.
Fxn of Cardiac Muscle: Pump blood
Pumping Blood Cardiac muscle cells contract to provide all cells with blood Blood has all of the nutrients that cells need to be healthy
transport nutrients & waste Fxn of Smooth Muscle: transport nutrients & waste
Transport Nutrients/Waste Smooth muscles line the inside of hollow organs and blood vessels Ex: swallowing, digesting food in intestines, defecating, erection
Video 1. Incredible Machine http://www.youtube.com/watch?v=7Rzi7zYlWno 2. Cartoon http://www.youtube.com/watch?v=RsWNyqnHQ2I