what are the components of the sarcomere - Ans:✔✔-z disc, m line, a band, i band, zone of overlap,
thick filament, thin filament, zone of overlap, sarcomere
z disc - Ans:✔✔-narrow, plate-shaped regions of dense materials that separate on sarcomere from the
next
a band - Ans:✔✔-dark, middle part of sarcomere that extends entire length of thick filaments & includes
those part of thin filaments that overlap thick filament s
i band - Ans:✔✔-lighter, less dense area of sarcomere that contains remainder of thin filaments but no
thick filaments
* z disc passes thru center of each I band
h zone - Ans:✔✔-narrow region in center of each a band that contains thick filaments but no thin
filaments
m line - Ans:✔✔-region in center of h zone that contains proteins that hold thick filament together at
center of sarcomere
fibrous (F) actin - Ans:✔✔-2 intertwined strands
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