简述(心肌)cardiac muscle fiber的光镜结构。相关知识点: 试题来源: 解析 答:心肌纤维呈短柱状,有分支,并相互连接成网状。心肌细胞一般有一个核,少数可见双核,核呈卵圆形,位于细胞中央,肌浆丰富,细胞内亦含粗细不等,界限不明的肌原纤维,周期性横纹不如骨骼肌明显。在相邻细胞之间可见特化的细胞连接,呈阶梯状,...
Involuntary striatedmuscle, found only in the heart.Seemuscle. Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited ThesaurusAntonymsRelated WordsSynonymsLegend: Switch tonew thesaurus Noun1. cardiac muscle- the muscle tissue of the heart; adapted to...
aeuro-zone saga, 欧洲区域英雄传奇,[translate] aBetween the cardiac muscle has the red blood cell, the muscle fiber arrangement is scattered in disorder, swelling, pellet denaturation, break 在心肌之间在混乱,膨胀,药丸变性,断裂有红血球,肌纤维安排驱散[translate]...
Cardiac hypertrophy, capillary and muscle fiber density, muscle fiber diameter, capillary radius and diffusion distance in the myocardium of growing rats adapted to an altitude of 3500 m . Pflug Archiv Ges Physiol. 1972 ; 335 : 19 – 28 ....
This is referred to as length-dependent activation of the muscle fiber, and is the primary mechanism by which cardiac muscle alters its force of contraction in response to changes in preload. The length-tension diagram shows that as preload increases, there is an increase in active tension up ...
In contrast to skeletal muscle fiber, cardiac muscle cells are able tocontract spontaneouslyand possess aninherent rhythmicity. Modified heart muscle cells (sinoauricular node,atrioventricular node, bundle of His, and Purkinje fibers), discussed inChapter 11, function as the neural elements of the hea...
Fig. 8: Schematic diagram depicting the mechanisms by which MI-induced reduction of Ndufs1 leads to cardiac dysfunction by exacerbating mitochondrial dysfunction and apoptosis. MI-induced Sp1 reduction decreases Ndufs1 transcription in the nucleus. Ndufs1 reduction in mitochondrial complex I increase ...
The average size of the cardiac muscle fibers in cases of CUO is the same as that in normal cardiac muscle, whereas the fibers in cases of EMF are 40 per cent larger.The widespread impression that cardiac muscle fibers are hypertrophied is probably due to the fact that there is a much gr...
Schematic diagram of the muscle fiber structure (left) and the molecular structure of the entire thin filament (right) Credit: Osaka University Researchers at Osaka University used electron cryomicroscopy (CryoEM) to image essential cardiac muscle components, known as thin filaments, with unprecedented...
Increased cardiac muscle fiber size and reduced cell number in Down syndrome: heart muscle cell number in Down syndrome. Pediatr Pathol. 1986;6:47-53.Recalde AL,Landing BH,Lipsey AI.Increased cardiac muscle fiber size and reduced cell number in Down syndrome:heart muscle cell number in Down ...