Physiology 2130 Lecture Notes - Lecture 6: Sliding Filament Theory, Neuromuscular Junction, Endoplasmic Reticulum
20 Feb 2017
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Document Summary
Describe the structural components of skeletal muscle. Describe the structural components of the skeletal muscle cell (fibre) Describe the structure of the thin filament and its associated proteins. Describe the structure of the thick filament. List the events that occur during the sliding filament theory and the interaction of the thin and thick filaments. Define excitation-contraction coupling and describe its molecular basis. List the events that occur during excitation-contraction coupling. Describe the complete series of events involved in muscle contraction starting with the release of calcium from the sarcoplasmic reticulum. Define the term motor unit and discuss how large motor units differ from small motor units. Describe how the grading of muscle contraction is accomplished. Each fascicle: bundles of muscle cells aka muscle fibres, each muscle cell. Myofibrils long cylindrical structure running the length of the cell made up of thin. Whole muscle > fascicle > muscle fibre(cell) > myofibrils > thin & thick myofilaments.
