Muscle Stuctures

16 cards·by Hernandez26

Epimysium

surrounds skeleal muscle an fascicles in a muscle

Perimysium

surrounds individual fascicles an seperates muscles into small comparments

Endomysium

surrounds individual muscles fibers

Sacrolemna

cell membrane of a muscle fiber cell

sacroplasm

cytoplasm of muscle muscle fiber cell

Myofibril

theads of proteins filament inside te saccoplasm

Myosin

thick proteins filaments inside any fibril

Actin

a thin protein filament inside any fibril

i band

actin filaments attached to 2 lines

Z line

Potein to which actin binds

A Band

region where myosin overlaps actin

Sarcomere

Unit of muscle from Z line

Motor Neuron

nerve cell that connects to muscle fiber

Neuromuscular Junction

connection between moor neuron and muscle fiber

Nuerotansmitters

Chemicals that go from neuron to muscle fiber

Motor unit

consits of motor neuron and muscle fiber