Acting of rotating arm or leg so that palm of the hand or sole of the foot is

Acting of rotating arm or leg so that palm of the

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Acting of rotating arm or leg so that palm of the hand or sole of the foot is turned downward or backward oDorsiflexion oMovement that bends the foot upward at the ankle Plantar flexion oMovement that bends the foot downward at the ankle How are muscles named? oOrigin oInsertion oAction
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oLocation oFiber directiono# of divisions osize or shape Select Muscles and their functions oMuscles of head oExamples oFrontalis Raises/ lowers eyebrows oTemporalis Moves lower jaw up and back to close the mouth oMasseter Moves lower jaw up to close the mouth while chewingoMuscles of trunk oExamples Pectoralis major Chest muscles External oblique/internal oblique Abdominal muscles Rectus abdominus Assists in breathing Transverse abdominis Assists with laughing or coughing oMuscles of shoulders and arms oExamples oDeltoid Muscular cap of the shoulder oTrapezius Moves head and shoulder blade oBiceps brachii Flexes elbow oTriceps brachii Extends elbow oMuscles of legs oExamples oQuadriceps femoris Group of four; flex and extend leg at the knee oHamstring group Group of three; flex knee; extend hip oGastrocnemius Calf muscle; flexes knee; bends foot downward Medical specialities related to Muscular system oExercise physiologist
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oDevelops. Implements, coordinates exercise programs with physician supervision oNeurologist oSpecializes in treating causes of paralysis/muscular disorders oOccupational therapist oEnables patient with the activities of daily lifeoPhysiatrist oSpecializes in physical medicine and rehab oPhysical therapist oProvides treatment to prevent disability or restore function oSports medicine physician oSpecialized in sports-related injuries Pathology of Muscular system oFibers, fascia, and tendons oFasciitis Inflammation of fascia Fasci: fascia; itis: inflammationoFibromyalgia Chronic condition characterized by fatigue and pain Fibr/o: fibrous tissue: my: muscle; algia: pain oTenosynovitis Inflammation of sheath surrounding a tendon Ten/o: tendon; synov: synovial memebrane; it is: inflammation oTendinitis Inflammation of tendons due to overuseTendin: tendon; itis: inflammation oChronic Fatigue syndrome Unknown cause Affects many body systems Profound fatigue not improved by bed rest and may be worsened by physical or mental activity Muscle disorders oAdhesion oBand of fibrous tissue holding structures together abnormally oAtrophy oWeakness/wearing away of body tissues and structures oMyalgia oTenderness or pain in the muscles oMyocele oHerniation of a muscle through tear in the fascia Cele: hernia oMyolysis
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oDegeneration of muscle tissue -lysis: destruction or breaking down in disease oMyorrhexis oRupture/tearing of a muscle
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