竇房的 的英文怎麼說
中文拼音 [dòufángde]
竇房的
英文
sinuauricular-
The sinoatrial node is located at the junction of the superior vena cava and the right atrium.
竇房結位於上腔靜脈與右心房的交界處。An increase in extracellular potassium does in fact shift the pacemaker within the sinus node from the cephalic to the caudal portion.
細胞外液鉀的增高確實能使竇房結內的起博點從頭側移向尾側。From the sa node, electrical impulses spread through the heart muscle to trigger the heartbeat.
從竇房石結出來的電脈沖傳播到心臟肌肉觸發心臟跳動。Purkinje fibers are driven ("over driven") by the sinus node at twice their intrinsic rate.
浦氏纖維是被較其本身頻率約高一倍的竇房結所驅動(「超速驅動」)。In order to investigate the relationship between myocardium responsiveness and its firing dynamic states, bilateral vagotomy, m receptor blocking, acetylcholine ( ach ) perfusion and continuously autonomic nerve ending stimulating methods were employed to change the rabbit sinoatrial node ( sa ) firing dynamics. isoprenaline, noradrenalin, ach, sympathetic or vagal nerve ending stimulation was used individually to measure the sa responsiveness in different dynamic state
3 、竇房結在正常放電狀態時,對0衛, 0人0石ug kg異丙腎上腺素的反應性均強于應用阿托品后,前後相比有顯著差異( p 0刀5 ) ;待阿托品作用部分消除后,竇房結對異丙腎上腺素的反應性也部分恢復。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 ) ) 。This is particularly important when the conducting tissues between the sa node and the ventricles fail only from time to time.
尤其在竇房結和心房之間的傳導組織有時發生故障時這點尤為重要。The main results as follows results from sinoatrial node in vivo 1 、 under bilateral vagi intact condition the value of hf ( high frequency power ) component, lf ( low frequency power ) component and apen value of ibis was the highest, but the lf / hf ratio was the lowest ; unilateral vagotomy decreased apen value of ibis, right vagotomy increased lf / hf ratio but left vagotomy did not
05 ) 。在離體竇房結還記錄到自發輕度不規則放電,自發不規則放電使竇房結放電間期近似嫡從對照時的0二8土0 09 ( n 6 )升高到不規則放電時的0Activation of the heart normally begins in the sinoatrial node.
在正常情況下,心臟的活動始於竇房結。Using an angled telescope, the posterior wall of the frontal sinus can be identified directly and any obstructing bone can be removed
在此動脈前操作可以減少損傷篩房的機會,內窺鏡能清楚地顯示額竇的後壁,並清除任何阻塞的骨片。But until now it is still not clear why heart rate variability can be used to predict the occurrence and development of cardiac diseases
目前國際上普遍認為自主神經對竇房結調製作用的下降是造成心率變異降低,並導致心臟疾病預后不良的原因。Effect of exhaustive exercise on microstructure of sinoatrial node of rats
力竭運動對大鼠竇房結顯微結構的影響The cardiac impulse originates in a relatively small group of primary pacemaker cells. typical primary pacemaker cells have the highest intrinsic frequency in firing. following its firing, there is a slow depolarization called pacemaker potential
位於右心房竇房結內的起搏細胞具有最高的固有發放節律,每次發放后即出現一個緩慢的自動去極化過程,心率主要取決于起搏細胞去極化的斜率。Purkinje fibers are driven ( " over driven " ) by the sinus node at twice their intrinsic rate
浦氏纖維是被較其本身頻率約高一倍的竇房結所驅動( 「超速驅動」 ) 。The heart rate is determined by the slope of depolarization. in physiological state heart rate is mediated by various physical, chemical and neural processes that take place in different, linked organs and organ systems
在完整統一的機體,反射性調節、整體性的反應以及情緒變化等經過中樞整合后,通過自主神經系統傳送至竇房結,對其發放頻率進行調制。Clinical significance of evaluation of sinus hypofunction by determining sinus node recovery time with teap
經食道調搏測定竇房結恢復時間評估竇房結功能不全的臨床意義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。Normal heart is excited traceable cardiac antrum room knot, antrum room knot is the wrestle since the heart is highest " headquarters "
正常的心臟激動起源於心臟的竇房結,竇房結是心臟起搏的最高「司令部」 。Other less frequent occurrences with administration of alpha 2 agonists include bradycardia and sinoauricular block, which hae been suggested to occur more commonly in young patients due to their high leel of parasympathetic tone ( 5 )
給與- 2受體激動劑后較少出現的作用包括心動過緩和竇房性傳導阻滯,這些作用更常發生在年輕人,因為其副交感神經張力處于高水平[ 5 ] 。These cell clusters in the central part of the sinus node are all around the sinus node artery.
竇房結中心區的細胞集落,全都存在於竇房結動脈周圍。分享友人