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Match it! Select the correct answer from the pull down...Good luck!
muscle cells have a single action, they
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
actin and myosin cannot bind until the blocking effect of ___ is removed
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
myosin 'heads' bind to _______, forming _______
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
what role(s) does ATP play in muscle contraction and relaxation?
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
the functionally 'contractile' unit of a skeletal muscle fiber is a structure called the
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
muscle filaments come in two 'flavors'
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
each somatic motor neuron innervates a group of muscle fibers called a
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
during muscle contraction, calcium release channels, to nobody's surprise, release calcium via a process called
all of the rest apply
thick, made of myosin; and thin, made of actin
tropomyosin
sarcomere
actin, cross-bridges
facilitated diffusion
contract, shortening in length
motor unit
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