Sign in to save your progress, vote, and build your own decks.Sign in
Muscle System
16 cards·by HircusCircus
Epimysium
surrounds skeletal muscle and all fascicles in a muscle
Perimysium
surrounds individual fascicles and seperates muscle into small compounds
Endomysium
surrounds individual muscle fibers
Sarcolemma
cell membrane of a muscle fiber
Sarcoplasm
cytoplasm of a muscle fiber
Myofibril
threads of protein inside the sarcoplasm
Myosin
thick protein filaments inside a myofibril
Actin
thin protein filaments inside a myofibril
I band
actin filaments attatched to Z-line
Z line
protein to which actin binds
A band
regions where myosin overlap 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