竇性搏動 的英文怎麼說
中文拼音 [dòuxìngbódòng]
竇性搏動
英文
sinus beat-
Our previous studies demonstrated that agmatine not only reduced the amplitude of action potential ( apa ), maximal rate of depolarization ( vmax ), velocity of diastolic ( phase 4 ) depolarization ( vdd ), and rate of pacemaker firing ( rpf ), but also prolonged 90 % duration of action potential ( apd90 ) in a concentration - dependent manner
我們先前的實驗證明，胍了胺可劑量依賴性地抑制兔竇房結起搏細胞的0相最大上升速度（ v _ （ max ） ） ，動作電位幅度（ apa ）和舒張期除極化速度（ vdd ） ，起搏細胞放電頻率（ rpf ） ，而且能延長90動作電位時程（ apd _ （ 90 ） ） 。Myocardial bioelectric phenomena and their mechanism, the characters of excitation transmission in heart ; the periodicity changes and their characters of myocardial excitability, autorhythmicity and pacemaker of heart ; pumping function of heart and evaluation ; the concept, mechanism and influencing factors of arterial blood pressure ; carotid sinus and aortic arch baroreceptor reflex
心肌細胞（工作細胞和自律細胞）的生物電現象及其形成的機制，心內興奮傳播的特點；心肌興奮性的周期性變化及其特點，自律性和心臟的起搏點；心臟的泵血功能及其評價；動脈血壓的概念、形成機制、影響因素；頸動脈竇和主動脈弓壓力感受性反射。Above influences are conformed by central nervous system and transmitted to sinoatrial node by sympathetic and parasympathetic nerves. in physiological conditions the parasympathetic nerve modulation to sinoatrial node play more important roles than sympathetic nerve and is the main source of the heart rate variability
在正常完整機體，心交感及心迷走均對竇房結施加緊張性影響，但在安靜狀態下心迷走緊張性影響居主導地位且是產生心率變異性（指逐次心搏rr間期不斷波動的現象）的主要原因之一。
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