ISSN:
1432-0878
Keywords:
Smooth muscle (Helix pomatia)
;
Contractile apparatus, Functional states
;
Thick myofilaments
;
Electron microscopy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary The ultrastructure of the isolated glycerinated penis retractor muscle (PRM) of Helix pomatia was investigated. The diameter distributions of thick myofilaments from fibre cross sections in the relaxed, phasic contracted, tonic contracted, and in the catch states show that a characteristic filament spectrum is formed in the catch state and its preceding active state. The significant structural differences are discussed in relation to earlier hypotheses related to the catch state.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00221808