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muscle structrue
review of muscle structure and function
Question | Answer |
---|---|
Muscle that provides the major force for producting a specific movement | agonist or prime mover |
muscles named for the # of origins of the muscle | bicep, tricep, quadracep |
muscle contraction | insertion moces toward the origin |
muscle that opposes movement, stretched, relaxed, prevents | antagonist |
contractile unit of a muscle cell | myofibril |
form of arthritis, autoimmune, bone forms in joint | rheumatoid |
muscle attached directly to bone | origin |
muscle attached via a tendon | insertion |
movement that makes the angle between 2 bones smaller | flexion |
movement that makes the angle between 2 bones larger | extension |
muscle functions | movement, posture, generate heat, stabalize joints |
skeletal muscle | striated, multi-nucleate, voluntary |
cardiac muscle | intercalated disc, branching cells, involuntary |
smooth muscle | no striations, involuntary |
synarthoses | immovable joint |
diarthoses | moveable joint |
named for direction of muscle fibers | rectus abdominis, external oblique |
named for shape | deltoid, trapezius |
named for action | adductor longus |
named for location | rectus femoris, biceps brachii |
synovial | joint that contains fluid |
build up of uric acid crystals in tissues of joints | gout |
imflammation of tendon | tendonitis |
contration of muscle, "squeeze and hold" | isometric |