Fig 4. 93W6245 Cardiac Muscle (cs&ls) ih.
Fig 4a shows a longitudinal section of cardiac muscle fibers.
Cardiac muscle fiber is cylindrical profile and arranged end to
end, connecting by specialized cell junctions, intercalated discs
(ID). Intercalated disk provide the site where it can join two or
more cardiac fibres, creating the branched patterns (arrow). The
ovoid nuclei (N) are centrally located and the perinuclear space
is devoid of myofibrils, showing pale staining in the cross-section
of cardiac muscle (Fig 4b, asterisks).