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Muscular System

QuestionAnswer
what are the functions of the muscular system 1. movement of the body 2. maintaining posture 3. generates body heat 4. role in other systems (respiratory, digestion, urinary)
what are the types of muscle tissue -skeletal (striated): voluntary -smooth - involuntary: digestion - cardiac: heart
a muscle composed of many muscle fibers arranged in bundles are called fascicles
fibers are found within muscle cells are called myocytes
individual muscles are separated by fascia, which also forms tendons
epimysium outermost layer, surrounds the entire muscle
perimysium separated and surrounds the fascicles (bundles)
endomysium surrounds each individual muscle fiber
sarcolemma muscle fiber membrane
sarcoplasm inner material surrounding fibers
sarcoplasm reticulum transport
myofibrils a parallel muscle fiber within the sarcoplasm
myosin thick filaments (dark)
actin think filaments (light)
hierarchy of muscles fascicles -> myofibrils -> myofilament (actin and myosin)
Created by: kyndallosborne
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