منابع مشابه
Fine Structure of Striated Muscle
Much of the recent work on muscle fine structure has been discussed in a recent review by Bennett (1), who also covered the structure of various sarcoplasmic components and the sarcolemma. The present paper will be limited to myofibrillar fine structure. In the main, the current controversy in relation to muscle structure centers around two models, (a) what might be termed the "classical" model...
متن کاملAllometry of skeletal muscle fine structure allows maintenance of aerobic capacity during ontogenetic growth.
Controversy exists over the scaling of oxygen consumption with body mass in vertebrates. A combination of biochemical and structural analyses were used to examine whether individual elements influencing oxygen delivery and demand within locomotory muscle respond similarly during ontogenetic growth of striped bass. Mass-specific metabolic enzyme activity confirmed that glycolytic capacity scaled...
متن کاملThe Fine Structure of Embryonic Chick Skeletal Muscle Cells Differentiated in Vitro
Dissociated myoblasts from 12-day chick embryos were cultured in monolayer, and the differentiation of skeletal muscle cells was studied by electron microscopy. The results have revealed a striking ultrastructural similarity between the in vivo and the in vitro developing muscle, particularly with respect to the myofibrils and sarcoplasmic reticulum. This study demonstrates that all the charact...
متن کاملFine structure of developed human tongue muscle.
The purpose of this study was to clarify the relationship myofibrils, mitochondoria and other cytoplasmic organella in the developed lingual muscle (vertical, transverse, and longitudinal) by using various microscopic levels: light, scanning electron, and transmission electron. The tongue muscles were examined in seventeen autopsy specimens: eight, 12-32 weeks gestation and ten adults (five mal...
متن کاملFine Structure of Rat Intrafusal Muscle Fibers
An ultrastructural study has been undertaken on the equatorial (sensory) region of the rat muscle spindle. Two kinds of intrafusal muscle fibers, a nuclear bag fiber and a nuclear chain fiber, have been identified in this region on the basis of fiber diameter, nuclear disposition, and M-band appearance. The large-diameter nuclear bag fiber contains an aggregation of tightly packed vesicular nuc...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1968
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1968.sp008583