Anatomy- sarcomere
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18 Terms
actin
a thin protein filament
myosin
a thick protein filament
m-line
anchors myosin in place
z-line
where actin attaches
a-band/dark band
an area of overlapping of actin and myosin
i-band/light band
actin only
h-zone
myosin only
sarcomere (smallest unit that can contract)
functional unit of a skeletal muscle
myosin does not what during contraction
move
what happens to the sarcomere during contraction
it shortens
during contraction, the z-lines get pulled in what direction
inward
actin attaches where
z-line
a type of muscle tissue where sarcomeres are found
skeletal
an area containing overlapping actin and myosin
a-band
a type of tissue that has the ability to contract
muscle
myosin is anchored where
m-line
the lengths of actin and myosin do not what during contraction
change
when a muscle is not contracting it is
relaxing