The following sections provide a basic framework for the understanding of gross human muscular anatomy, with descriptions of the large muscle groups and their actions. The various muscle groups work in a coordinated fashion to control the movements of the human body. The neck muscles of the neck...
These cells contain myosin and actin, which differ in some aspects of their structure from the corresponding proteins in muscles because of variations in the genes that encode them. Striated muscle Whole muscle Striated, or striped, muscle constitutes a large fraction of the total body weight in ...
Skeletal muscleis a highly specialized tissue. Its primary function is to generate longitudinal contraction. Skeletal muscles are unique tissues that are composed of bundles of highly oriented and dense muscle fibers, each a multinucleated cell derived frommyoblasts. The muscle fibers in native skeleta...
Campbell MJ, McComas AJ, Petito F (1973) Physiological changes in ageing muscles. J Neurol Neurosurg Psychiatry 36(2):174–182. http://www.ncbi.nlm.nih.gov/pubmed/4708452 Coggan AR et al (1992) Histochemical and enzymatic comparison of the gastrocnemius muscle of young and elderly men ...
Neuromuscular spindles are present within skeletal muscles and function in proprioception. Intrafusal fibers, or neuromuscular spindles, are interspersed among extrafusal fibers. Intrafusal fibers are composed of two separate cells: the nuclear bag fiber and the nuclear chain fiber. The entire unit func...
These muscles also have much in common. All muscle contains the proteins actin and myosin, which are the locus of the mechanochemical energy conversion. Chemical energy in the form of ATP hydrolysis is the immediate driving reaction for all muscle energy transduction. Another feature common to all...
It was concluded that there is a predominant genetic influence on the skeletal muscle fibre composition in man, and thus also on the potential capacity of the muscles to perform work. 展开 DOI: 10.1111/j.1365-201X.1977.tb00001.x 被引量: 475 ...
Heart, Effect of drugs on, Congresses, Muscles, Smooth muscle, Muscle, Mechanism of action, AnestheticsThe volatile anesthetics continue to be one of the most mysterious yet commonly used class of drugs in medical practice today. A prominent and troublesome side effect of volatile anesthetics is ...
In addition, clenbuterol treatment caused a significant increase in TA and gastrocnemius weight relative to PBS treatment in MLC-Cre:GRK2fl/fl mice, whereas the same muscles in GRK2fl/fl mice trended toward a clenbuterol-stimulated increase in mass yet did not reach significance. As with the ...
While the vascular structures, muscles, and the glands could be segmented with these semi-automatic methods, the relevant nerves could often not be identified due to their size in relation to the image resolution. In CT data with low slice distance, the N. accessorius and N. vagus could be...