Arrangement of the Vascular Bed in Different Types of Skeletal Muscles

Author(s):  
R. Myrhage ◽  
E. Eriksson
2000 ◽  
Vol 279 (6) ◽  
pp. R2042-R2047 ◽  
Author(s):  
Kentaro Ayada ◽  
Makoto Watanabe ◽  
Yasuo Endo

The effects of different types of stress (water bathing, cold, restraint, and prolonged walking) on histidine decarboxylase (HDC) activity in masseter, quadriceps femoris, and pectoralis superficial muscles, and in the stomach were examined in mice. All of these stresses elevated gastric HDC activity. Although water bathing, in which muscle activity was slight, was sufficiently stressful to produce gastric hemorrhage and to increase gastric HDC activity, it produced no detectable elevation of HDC activity in any of the muscles examined. The other stresses all elevated HDC activity in all three muscles. We devised two methods of restraint, one accompanied by mastication and the other not. The former elevated HDC activity in the masseter muscle, but the latter did not. These results suggest that 1) HDC activity in the stomach is an index of responses to stress, 2) the elevation of HDC activity in skeletal muscles during stress is induced partly or wholly by muscle activity and/or muscle tension, and 3) stress itself does not always induce an elevation of HDC activity in skeletal muscles.


2018 ◽  
pp. 961-1000
Author(s):  
İmran Göker

In this chapter, the monitoring of the electrical activity of skeletal muscles is depicted. The main components of the detection and conditioning of the EMG signals is explained in the sense of the biomedical instrumentation. But, first, a brief description of EMG generation is introduced. The hardware components of the general instrumentation system used in the acquisition of EMG signal such as amplifier, filters, analog-to-digital converter are discussed in detail. Subsequently, different types of electrodes used in different EMG techniques are mentioned. Then, various EMG signals that can be detected and monitored via EMG systems are described and their clinical importance is discussed with detail. Finally, different EMG techniques used in clinical studies and their purposes are explained with detail.


Meat Science ◽  
2016 ◽  
Vol 118 ◽  
pp. 129-132 ◽  
Author(s):  
M. Oe ◽  
K. Ojima ◽  
I. Nakajima ◽  
K. Chikuni ◽  
M. Shibata ◽  
...  

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