The chapter studies drug-induced changes in the cardiovascular system. The recognition of drug-induced structural changes in cardiac tissues in humans is hampered by the problems of differentiating drug-induced
The cardiovascular system, consisting of the heart (a powerful muscular pump) and blood vessels (fuel line and transportation network), performs this important work. 人体细胞依赖于营养和氧气的持续供应。在这些物质经过运输后,再通过化学方式...
Cardiac Conduction System. A, Sinoatrial (SA) node, foal. The center of the SA node (1) contains a nodal artery (2). H&E stain. A1, Higher magnification. Haphazardly oriented myofibers are embedded within abundant loose collagenous and elastic connective tissue. H&E stain. A2, Higher ...
The cardiac conduction system (CCS) is responsible both for initiation and conduction of the electrical impulses that bring about the estimated three billion rhythmic and synchronous contractions of the heart throughout the average human lifetime1. The electrical impulse is generated in the sinoatrial ...
Cardiac conduction system regeneration prevents arrhythmias after myocardial infarction Sayers et al. reveal that heart regeneration during the neonatal period in mice extends to conduction system restoration after insult, highlighting the difference between this process and pathological remodeling in the adult...
Conduction system regeneration and remodeling after myocardial infarction Myocardial infarction can lead to arrythmias, which increase mortality, but the mechanisms behind this are unclear. A study shows that the capacity to regenerate the cardiac conduction system is reduced with age, resulting in pathol...
P213 L8- P214 L24 Automaticity of the heart (Pre. 2) P214 L25- P215 L35 Conducting (Conduction) System automaticity or autorhythmicity a result of the inherent rhythmicity of cardiac muscle components of conducting system two nodes sinoatrial node (SA node) atrioventricular node (AV node), ...
Cardiac muscle has short branching fibers, is striated, and functions involuntary allow for the contraction of the heart to pump blood throughout the body (Castillo, 2018). The conduction system of the heart includes the Sinoatrial node, Atrioventricular node, left and right bundle branches, and ...
What are the functions of the skeletal system? What is the function of the respiratory system? What two important functions does the cardiac conduction system perform? What is the major functions of the respiratory system? Explain the overall function of the entire cardiovascular system including all...
The myocardial conduction system. Major species differences include ramification of the cardiac conduction fibers, which can reach the subepicardium in some species (not shown). AV, atrioventricular; LA, left atrium; RA, right atrium; LV, left ventricle; RV, right ventricle; SA, sinoatrial. ...