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10 Cards in this Set

  • Front
  • Back
vertebrate muscles are divided into 3 general categories:
involuntary, voluntary, and cardiac
involuntary
nonstriated, smooth muscles (ex: bladder)
voluntary
striated
cardiac
striated, involuntary
contraction depends on what 2 proteins?
actin and myosin
actin
thin filament
myosin
thick filament
myocytes
muscle cells
how are myocytes unique?
they are large (one cell can run the entire length of an entire muscle), and they are multinuclear (fusion of embryonic myoblasts)
sarcolemma
cell membrane of the muscle cell