muscular system
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| 4 functions: | *movement *structures/postures *heal productions *protection
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| movement: | all body movement depends of muscle action
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| structure/posture: | muscle accounts for @ least 50% body weight
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| heal productins: | wounds close after time, fascia re-closes an open area.
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| Protection: | limits movement to avoid injury:golgi tendon organ/muscle spindle
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| 1.muscle: | skeletal (voluntary) A. attached to bone B. slow twitch/fast twitch
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| 2.muscle: | cardiac (involuntary) A. heart b. controls itself & its rhythm: mechanical/electrical C. designed for endurance
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| 3.muscle | smooth (involuntary) A. found in visera, blood vessels, intestines B. designed to maintain long contractions.
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| 1.muscle cell: | muscle fiber
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| 2.endomysium: | surrounds fibers
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| 3.perimysiun: | surrounds fasicles
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| 4.muscle: | bundles of fasicles
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| 5.epimysium: | surrounds muscle
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| deep fascia: | surrounds groups, become tendons @ the end of muscle
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| aponeurosis: | broad sheet of connective tissue
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| retinaculum: | bandage like connective tissue, holds structures in place.
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| muscletone: | partial state of muscle
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| contraction: | posture
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| flacid: | lack of tone
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| hypertonicity: | too much tone
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| agonist: | prime mover
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| synorgist: | assists the prime mover
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| antagonist: | opposes prime mover
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| fixator: | stabilize proximal aspects so that dostal can move to it's max
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| isometric contraction: | no change in movement
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| isotonic contraction: | change in muscle lenght
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| lever system: | *class 1 (FAR)
*class 2 (FRA): wheel barrel; power speed
*CLASS 3 (AFR): bicep curl
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| suport: | holds bones in place; every bone is connected to another bone by ligaments (except hyoid)
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| synovial joints: | hinge/ball socket/gliding/saddle
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| amphiarthrotic | slightly movable, vertabrae
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| synarthrotic: | no mov't skull sutures
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| synovial darthrotic: | freely moving; knees, elbows, shoulders
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| flexability: | 3 different joints in body; based on mov't or degree of mov't
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Created by:
jesmaria
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