title: Changes in diffraction patterns with length in single muscle fibres at rest.
abstract: The addition of a simple X--Y sampling circuit to a closed circuit television system (CCTV) permits measurements of a narrow profile of the laser diffraction patterns from single frog muscle fibres at rest. Results confirm that maximum intensity occurs at 2.95-3.00 micron, but a positive linear relationship between the dispersions of sarcomeres and sarcomere lengths from 2.7--3.8 micron is obtained in four isolated single fibres.
mesh_terms: D000818:Animals; D001001:Anura; D003461:Crystallography; D066298:In Vitro Techniques; D007834:Lasers; D009132:Muscles / Q000166:cytology / Q000502:physiology*; D009210:Myofibrils / Q000502:physiology* / Q000648:ultrastructure; D011898:Ranidae; D013690:Television