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Detail of some longitudinal-cardiac
muscle fibers
observed with the objective of 100x. We can notice the
intercalated discs,
which are thicker and more intensely stained than the
cross-striation. The central
nucleus
of each fiber can also be seen. Around the fibers there is
abundant
conjunctive tissue,
including
fibrocytes
and some blood
vessels.
Details of a transverselly cut
muscle fiber
are shown in other microphotography
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