Skeletal Muscle Anatomy

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Presentation transcript:

Skeletal Muscle Anatomy

Skeletal Muscle Fiber Skeletal Muscle Fiber: single cell that contracts in response to stimulation or relaxes when the stimulation ends

Parts of the Skeletal Fiber Sarcolemma- cell membrane Sarcoplasm- cytoplasm Myofibrils- threadlike protein filaments Myosin- thick filaments Actin- thin filaments Altering myosin/actin is what causes striations in skeletal muscle fibers

Organization of Muscles

Other Structures Sarcoplasmic reticulum: like ER Transverse Tubules: help with muscle contraction

Arrangement of Muscle Fibers

Make a model On a sheet of paper, use available supplies to make a model of a sacromere. Label- myosin/actin and the bands that we went over.