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Muscular System Outline 3 types of Muscle Tissue: Functions of muscle: - aid in - protect - provide - produces Muscle can be stimulated 3 ways: Vocabulary: Irritability or excitability: Contractility: Extensibility: Elasticity: 3 Types of Muscle Tissue: Skeletal Muscle - make up - increase - Named according to: o o o o o - looks striated under microscope Tendons attach: Basic unit of muscle fibers: o causes o made up of 3 parts of Skeletal muscle: 1. Origin: 2. Insertion: 3. Body: = decreasing joint angle = increasing joint angle = movement away from the midline = movement towards the midline = turning palms down = turning palms up Visceral Muscle - lines - makes up - in - contracts - controlled by ANS Cardiac Muscle - Contraction Isotonic Definition Muscle tone (Tonus) No shortening of muscle Tetanic Uncoordinated contraction of muscle fiber Groups of muscles in abnormal manner Spasms