Muscles

Muscle Tissue

16 cards·by TheyCallMeBigPoppa

Epimysium

Surrounds skeletal muscle and all fascicles in a muscle

Perimysium

surrounds individual fascicles and separates muscle into small comparents

Endomysium

surrounds individual muscle fibers

sarcolemma

cell membrane of a muscle

sarcoplasm

cytoplasm of a muscle fiber

myofibril

threads of protein inside the sarcoplasm

myosin

thick protein filiment

actin

thin protein filiment

I band

actin filament attached to z lines

z line

protein to which actin can bind

a band

myosin overlaps actin

sarcomere

z line to z line

motor neuron

nerve thats connects to muscle fiber

neruonuscular junction

connection between motor neron and muscle fibers

neurotransmitters

chemicals that go from neuron to muscle fibers

motor unit

consists of motor neuron and a muscle fiber