HBS Unit 4 Study Guide latest questions and answers all are correct graded A+

Skeletal muscle - an organ specialized for contraction, composed of striated muscle fibers (cells), supported by connective tissue, attached to bone by a tendon or aponeurosis, and stimulated by somatic motor neurons Sarcomere - any of the repeating structural units of striated muscle Sliding filament mechanism - the explanation of how thick and thin filaments slide relative to one another during striated muscle contract to decrease sarcomere length Insertion - the attachment of a muscle tendon to a movable bone or the end opposite the origin Contract - to shorten and thicken Muscle - an organ composed of one of the three types of muscular tissue (skeletal, cardiac, and smooth), specialized for contraction to produce voluntary and involuntary movements of parts of the body Perimysium - the connective-tissue sheath that surrounds a muscle and forms sheaths for the bundles of muscle fibers Rigor mortis - temporary rigidity of muscles occurring after death Tropomyosin - a protein of muscle that forms a complex with troponin regulating the interaction of actin and myosin in muscular contraction Plexus - network of interlacing blood vessels or nerves Fascicle - A small bundle or cluster, especially of nerve or muscle fibersCardiac muscle - Striated muscle fibers (cells) that form the wall of the heart; stimulated by the intrinsic conduction system and autonomic motor neurons Epimysium - The external connective-tissue sheath of a muscle Actin - a contractile protein that is part of the thin filaments in muscle fibers Carpal tunnel syndrome - a condition caused by compression of the median nerve in the carpal tunnel and characterized especially by weakness, pain, and disturbances of sensation in the hand and fingers Smooth muscle - a tissue specialized for contraction, composed of smooth muscle fibers (cells), located in the walls of hollow internal organs, and innervated by the autonomic motor neurons Myofibril - a threadlike structure, extending longitudinally through a muscle fiber (cell) consisting mainly of thick filaments (myosin) and thin filaments (actin, troponin, and tropomyosin) Nerve - a cord-like bundle of neuronal axons and/or dendrites and associated connective tissue coursing together outside the CNS Endomysium - the delicate connective tissue surrounding the individual muscular fibers within the smallest bundles Striation - any of the alternate dark and light cross bands of a myofibril of striated muscle Myosin - the contractile protein that makes up the thick filaments of muscle fibers Troponin - a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction