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Normal
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Normal

View of the inflow tract of the left ventricle.
Note the mitral valve with the posterior papillary muscle on your right, and the anterior on the left.
The exposed endocardial surface between the 2 papillary muscles and below the mitral valve is the left surface of the IV septum.
(Description By:Melinda Sanders,M.D. )
(Image Contrib. by:Melinda Sanders,M.D. UCHC )
Normal
Etiology
N.A.
Pathogenesis
N.A.,
Epidemiology
N.A.
General Gross Description
Appears homogeneously bright red.
General Microscopic Description

Myocardial fibers are striated and are made up of individual cellular units containing one or two centrally placed large ovoid nuclei.
Elongate units are either unbranched and separated at each end from adjoining units by intercalated discs, or may branch, with intercalated discs demarcating the branch ends from adjoining branched or unbranched cellular units. This is not a true syncytium.
Yellow lipofuscin granules accumulate with increasing age near the two poles of the nucleus.
Clinical Correlation

N.A.
References

Burkitt G etal. Wheater's basic histopathology, 3rd ed. New York: Churchill Livingstone, 1996, pp. 107-111.
Normal
Synopsis by: J. Hasson, MD (T32000M00100)[547]
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