Functions of Muscular SystemProvide movement for the bodyProduce heatHelps with the movement of food through the digestive systemHelps you breathHelps with the beating of your heart
Moving the human bodyMuscle-an organ that contracts and gets shorter- this provides the force to move your body parts.Muscles of thebody
Muscle ControlVoluntary muscles- muscles that you are able to controlExamples are leg and arm muscles -most of the muscles that attach to bonesInvoluntary Muscles- you can not move them consciously. They just keep workingExamples- heart , blood vessels
Types of Muscles-skeletalSkeletal Muscles-muscles that move bonesAttached to bones by tendonsMost numerous in the bodyLook striped or striatedVoluntary muscles you can control when they move
Types of Muscles-Smooth MusclesSmooth muscles- nonstriatedInvoluntary cannot control them consciouslyMove the internal organsContract and relax slowlyExample- small intestine, stomach muscles
Types of Muscles-Cardiac MuscleCardiac muscle-found only in the heartInvoluntary you cannot control when it beatsStriationsContracts about 70 times a minute every day of your life.
Types of Muscles3 types of muscles?
How Muscles WorkSkeletal muscles-when one muscles contracts- another muscle relaxesMuscles always pull- never pushMuscles use glucose chemical energyProduce thermal (heat) energy when they contractMuscles that are not exercised become smallerHow muscles work
Muscles and bones work togetherSkeletal system working together with the Muscular SystemWorking togetherLets Review
How Muscles WorkWhen bundles of muscles are stimulated by nerve impulses, or signals, they ___contract____________, or shorten. When they relax, the bundles stretch.
Types of MusclesThree Types of Muscle Tissue ______________________ ______________________ ______________________
What Muscles Do
___Muscle___movements help you _________, make your _______ beat, and move food through your digestive system.
Types of Muscles ___________________ are involuntary muscles. _________________________Muscles that act on the lining of the bodys passageways and hollow internal organs
Types of Muscles
______________________ is involuntary and is responsible for the contraction of your heart. Your heart beats 100,000 times each day._____________________A type of striated muscle that forms the wall of the heart
Types of Muscles
Most of your muscle tissue is skeletal, and almost all _________________ are under voluntary control.
__________________________Muscles attached to bone that cause body movements
What Muscles DoSkeletal muscles work in pairs to produce movement.
Body MovementsFlexing of the hamstring.When you bend your knee, the quadriceps muscle relaxes and the hamstring muscle contracts.
Body Movements cont.Extension of the quadriceps.When the leg is straightthe hamstring musclerelaxes (stretched) and the quadriceps muscle contracts or shortens.
