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24 Cards in this Set

  • Front
  • Back
Motion results from...
Alternating contraction
the study of muscles
myology
attached to bones
skeletal muscle
wall of heart
cardiac
located in viscera
smooth (visceral)
through contraction, muscles perform what four important functions...
motion, stabalizing body positions, and regulating organ volume, and generation of heat
thermogenesis
generation of heat
85 percent of this comes from contraction
generation of heat/thermogenesis
sustained smooth muscle contraction
prevents outflow of contents of hollow organs, stomach, and bladder
excitability
ability to respond to certain stimuli by producing impulses (electrical signals)
contractility
ability to shorten and thicken (contract)
extensibilty
ability to be extended (stretched)
elasticity
ability to return to original shape
blood supplies what?
nutrients and oxygen
motor neurons are where?
nerves
superficial fascia
underneath skin
deep fascia
around muscles and organs
connective tissue components (3)
epimysium, perimysium, and endomysium
epimysium
covering entire muscle
perimysium
covering faciculi
endomysium
covering indiviual muscle fibers
tendons
attach muscle to bone
tendon (synovial) sheaths
slide back and forth
motor unit...formed of:
motor neuron and muscle fibers