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Muscles A+P CH.7 lecture 3 (fibromyalgia (pain or tenderness in muscle,…
Muscles A+P CH.7 lecture 3
fibromyalgia
pain or tenderness in muscle
S&S: acute injury or viral infection
common in women
Treatment: no treatment, symptom management
Cause: unknown
Diagnosis: pain in 11 of 18 designated tender points
contraction and relaxation
movement of body is result of contracting of certain muscles and relaxation
prime mover (agonist)
chief muscle, pulls bone causing movement
point of origin
muscle end attached to stationary bone
point of insertion
muscle end attached to moving bone
common qualities
contractability
shortens or contracts
excitability/irritability
ability to respond to certain stimuli by producing electrical signals (impulses)
extensibility
ability to be stretched
elasticity
ability of muscle to return to its original length when relaxing
synergistic muscle
assist primary mover
antagonist
causes movement in opposite direction or agonist
Diaphragm
primary mover of breathing
separates abdominal cavity, perform major work of bringing atmospheric air into lungs
voluntary and involuntary
you can change the way you breathe