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...
The cardiac conduction system and the cardiac valves degenerate over time, leading to increased frequency of dysrhythmias and valvular heart disease. Autonomic regulation and the neuroendocrine responses also change with aging. Both physiological aging and age-related disease processes interact to yield ...
which is located on the right atrial wall and is responsible for initiating normal cardiac conduction.Impaired signaling from the sinoatrial node can markedly slow the rate of ventricular contraction,leading to reduced cardiac output and symptoms of dyspnea, fatigue, lightheadedness, presyncope,...
The cardiac conduction system and the cardiac valves degenerate over time, leading to increased frequency of dysrhythmias and valvular heart disease. Autonomic regulation and the neuroendocrine responses also change with aging. Both physiological aging and age-related disease processes interact to yield ...
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...
The heartbeat: conduction system, sinoatrial[4]node, atrioventricular node, the bundle of his(HISS), purkinje fibers. Bloodvessels aorta, superior/inferior vena cava[5], pulmonary artery/vein carotid artery(common, external, internal), arteriole, capillary ...
心血管系统 The Cardiovascular System Unit 8;New Words and Phrases alveolus n. ( alveoli pl. alveolar adj. ) a tiny, thin-walled, capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place, also called air sac. 肺泡; 肺中薄壁的、富有毛细血管的小液囊, ...
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 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...
1、Chapter VI Diseases of Cardiovascular System 心血管系统疾病心血管系统疾病 Cardio vascular system Heart Blood vessels “Pump” More morbidity the constituents of the plaque include SMCs, ECMs, inflammatory cells, lipids, and necrotic debris. Natural history, morphologic features anterior two thirds ...