Marshon the Muscle Man

Muscles on top of muscles

16 cards·by marshon

Epimysium

surrounds skeleton muscle and all fascicles in a muscle

Perimysium

surrounds individual fascicles and seperates muscle into small copartments

Endomysium

surround individual muscle fibers

Sarcolemma

cell membrane of a musle fiber(cell)

Sarcoplasm

cytoplasm of a muscle fiber (cell)

Myofibril

thread of protien inside the sarcoplasm

Myosin

thick protien filament inside a myofibril

Actin

thin protien filament inside a myofibril

I brand

actin filament attached to z line

Z line

protein to which actin binds

A band

region where myosin overlapped 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

chemcals that go from neuron to muscle fiber

Motor unit

cosists of motor neuron and a muscle fiber