CARDIAC MUSCLE – 2
The upper figure shows cardiac muscle fibers sectioned longitudinally, and the lower figure shows fibers sectioned transversely.
In these two figures the main histological characteristics of cardiac muscle fibers can be observed:
– Fibers organized in bundles
– Nuclei centrally located in the cells – highlighted in green after clicking or using the mouse. The position of the nuclei can be better observed in cross-sections of the fibers.
– Intercalated disks, vewed as darker staining lines that are regions of intercellular junctions between the extremities of cardiac muscle cells. They are seen transverse to the fibers.Some times the intercalated disks are poorly stained after hematoxylin and eosin staining. Some become highlighted in light green.
In these two figures the main histological characteristics of cardiac muscle fibers can be observed:
– Fibers organized in bundles
– Nuclei centrally located in the cells – highlighted in green after clicking or using the mouse. The position of the nuclei can be better observed in cross-sections of the fibers.
– Intercalated disks, vewed as darker staining lines that are regions of intercellular junctions between the extremities of cardiac muscle cells. They are seen transverse to the fibers.Some times the intercalated disks are poorly stained after hematoxylin and eosin staining. Some become highlighted in light green.
Cardiac muscle. Staining: HE. Magnification: medium.
Cardiac muscle. Staining: HE. Magnification: medium.