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The transverse tubule (T-tubule) system in papillary muscles of the sand rat and the mouse were studied with the aid of a diffusion tracer (horseradish peroxidase). The T-tubule system in the sand rat showed a typical mammalian pattern with sarcolemmal tubules invaginating at the Z-band level of the sarcomere. These tubules follow a transverse direction in the cell with frequent longitudinal side-branches which connect tubules at different Z-band levels. In the mouse myocardium, the T-tubules also start as lateral invaginations from the sarcolemma at the Z-band levels. In the cell interior, however, the tubules ramify and brake up into a complicated system of spirally running tubules. These spirals, of relative small diameter (400A--700A), frequently expand and form lobulated cisternae at the Z-band levels.
R Myklebust, and
T S Saetersdal, and
H Engedal
August 1980,
Brain research,
R Myklebust, and
T S Saetersdal, and
H Engedal
January 1980,
Anatomy and embryology,
R Myklebust, and
T S Saetersdal, and
H Engedal
January 1979,
Experimental brain research,
R Myklebust, and
T S Saetersdal, and
H Engedal
January 1978,
The Journal of comparative neurology,
R Myklebust, and
T S Saetersdal, and
H Engedal
August 1978,
Brain research,
R Myklebust, and
T S Saetersdal, and
H Engedal
September 1979,
Brain research,
R Myklebust, and
T S Saetersdal, and
H Engedal
April 1979,
Anatomy and embryology,
R Myklebust, and
T S Saetersdal, and
H Engedal
January 1979,
Neuroscience,
R Myklebust, and
T S Saetersdal, and
H Engedal
January 1977,
Neuroscience,
R Myklebust, and
T S Saetersdal, and
H Engedal
January 1992,
Functional and developmental morphology,
