ISSN:
1432-0878
Keywords:
Striated muscle
;
Iris
;
Guinea pig
;
Ultrastructure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Transverse sections of the sphincter pupillae of the guinea-pig iris show, among about 3000 smooth muscle cells, one or two cells with several features of striated muscle fibres. The myofilaments of these special, “striated” muscle cells have irregular and variable arrangements, but they are readily distinguishable from those of smooth muscle cells. The sarcoplasmic reticulum is conspicuous and is characterized by an electron dense content. “Striated” muscle cells show no nexuses.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00223163