Sign in to save your progress, vote, and build your own decks.Sign in
muscle vocab
16 cards·by legacy-20773033@noemail.invalid
what is Epimysium
Surrounds skeletal muscle and all fascicles in a muscle
Perimysium
Surrounds individual fascicles and separates muscle into small compartments
Endomysium
surround individual muscle fibers
Sarcolemma
cell membrane of a muscle fiber
Sarcoplasm
cytoplasm of a muscle fiber
Myofibril
threads of protein inside sarcoplasm
Myosin
thick protein filament inside myofbril
Actin
thin protein filament inside a myofibril
I band
actin filaments attached to Z-lines
Z line
protein to which actin binds
A band
region where myosin overlaps actin
Sarcomere
unit of muscle from Z-line to Z-line
Motor neuron
nerve cell that connects to muscle fiber
Neuromuscular junction
connection between motor neuron and muscle fiber
Neurotransmitters
Chemicals that go from neuron to muscle fibers
Motor unit
consists of motor neuron and a muscle fiber