Muscle Structure Flashcards
3 types of muscle
skeletal, smooth and cardiac
tendon
connects muscles bone to bone
dense collagen fibers
3 layers of connective tissue
epimysium, perimysium, endomysium
epimysium
fascia
surrounds whole muscle
irregular collagen fibers
fascile
bundle of fibers
irregular collagen fibers
perimysium
surrounded by sarcolemma and endymysium
myofybril
contain actina nd myosin
sarcomere
contractile unit of muscle
contains actin and myosin filaments that overlap in an arranged pattern
myosin
thick filaments that connect to actin
actin
thin, overlap myosin
connective tissue types
epimysium, perimysium, endomysium, tendons, ligaments
what are connective tissues comprised of
collagen fibers
what is collagen
fiberous protein with high tensile strength
regular collagen fibers
withstand forced in one direction
ligaments and tendons
not sturdy when twisten
irregular collaged fibers
withstand forces in different directions
skeletal muscles and joint capsules