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Muscular System
16 cards·by SosaSosa
A Band
Region where myosin overlaps actin.
Actin
Thin protien filiments inside a myofibril.
Endomysium
Surrounds individual muscle fibers.
Epimysium
Surrounds skeletal muscle and all fascicles in the muscle
I-Band
Actin filiments attatched to the z-line.
Motor Neuron
Nerve cell that connects to muscle fiber.
Motor Unit
Consists of motor neuron and muscle fibers.
Myofibril
Threads of protien inside the sarcoplasm.
Myosin
Thick protien filiment inside a myofibril.
Neuronmuscular Junction
Connection between motor neuron and muscle fiber.
Neurotransmitter
Chemicals that go from neuron to muscle fiber.
Perimysium
Surrounds individual fascicles and separates muscle into small compartments.
Sacromere
Unit of muscle from z-line to z-line.
Sarcolemma
Cell membrane of a muscle fiber (cell).
Sarcoplasm
Cytoplasm of a muscle fiber (cell).
Z Line
Protiens to which actin binds.