muscle structures

16 cards·by jackie

what is epimysium?

surrounds skeletal muscle and all fascicles in a muscle

what is perimysium?

surrounds individual Fascicles and seperate muscle into small compartnes

what is endomysium?

surrounds individual muscle fibers

what is sarcolemma

cell membrane of muscle fiber (cell)

what is scacoplasma?

cytoplasma of muscle fiber (cell)

what is myofibril?

threads of protien inside the sarcoplasma

what is Myosin?

thick protien filament inside a myofibril

what is actin?

thick protien filamentinside a myofibril

what is i band?

actin filament attached to z line

what is z line?

protien to which actin binds

what is a band?

region where myosin overlaps actin

what is sarcomere ?

unit of muscle from z line to z line

what is motor neuron ?

nerve cell that connects to muiscle fibers

what is neuromuscular junction

connection between motor neuron and muscle fiber

what is neurotransmitters?

chemicals that go from neuron to muscle fiberts

what is motor unit ?

consists of motor neuron and muscle fibers