Ultrastructural characterization of superficial and deep flexor muscles in the crayfish thorax

Autor:	R. G. Sherman, R. L. Crabtree
Rok vydání:	1981
Předmět:	Myofilament Ultrastructure Thorax (insect anatomy) Animal Science and Zoology Anatomy Flexor muscles Biology Crayfish Sarcomere Ecology Evolution Behavior and Systematics
Zdroj:	Canadian Journal of Zoology. 59:357-363
ISSN:	1480-3283 0008-4301
Popis:	Transmission electon microscopy revealed that all of the superficial flexor muscle fibers in the crayfish thorax possess sarcomeres 8–10 μm in length, 12 thin myofilaments around each thick myofilament, no H zone, and irregular Z lines. This characterizes them as tonic. All of the deep flexor fibers possess sarcomeres 2–4 μm in length, six myofilaments around each thick myofilament, a distinct H zone, and Z lines that are perpendicular to the longitudinal axis of the fiber. This characterizes them as phasic. Differences in the distribution of mitochondria and glycogen granules and in the organization of synaptic regions also are noted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5bf8f75b95785047aec155dc4d7950dd https://doi.org/10.1139/z81-053 Zobrazit plný text záznamu