The "pacemaker" of the heart is the A. SA node. B. AV node. C. AV septum. D. ventricle. Blood Flow in the Heart: The heart is the major organ of the cardiovascular system and receives and delivers blood to and from all parts of the body. All deo...
The pacemaker of the heart is normally theA.sinoatrial nodeB.atrioventricular nodeC.mitral valveD.bundle of HisE.left ventricle的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库
These cells carry electrical energy through the heart in a predictable pattern, stimulating the different parts of the heart to contract in a regular rhythm. This network is called the intrinsic cardiac conduction system. Answer and Expla...
5、n the heart? What is the major function of the Purkinje fibers? And how do they work? What is the pacemaker of the heart? And why?,Questions for Paragraph 3,1. The SA and the AV initiate impulses. 2. The Purkinje fibers form a pathway for conduction of the impulse which ensures...
基础医学英语课件：Unit 2 The Heart UNIT2PassageA TheHeart Keyterms ventricle---ventricular(adj.)atrium---atria(pl.)---atrial (adj.)systole---systolic(adj.)diastole---diastolic(adj.)di-:expand cardiacadj.oftheheartskeletalmuscle骨骼肌smoothmuscle平滑肌striatedadj.横纹的intercalateddisc闰盘 the...
What causes the sound of the heart? What is the term that is associated with an irregular heartbeat? Explain about cardiac cycle, systole, diastole, systolic pressure and diastolic pressure. What heart structure is considered the pacemaker of the heart?
Human heart is AMyogenic BNeurogenic CVenous DBoth (1) & (2)Submit The pacemaker of human heart is AAV- Node BSV- Node, CSA-Node DM-Node.Submit Which one of following is called pace maker of the heart? AS A node BA V node CChordae tendinae DA V septumSubmit ...
The natural pacemaker of the heart is made of cardiac muscle tissue that stimulates other cardiac muscle cells to contract. Because of its self-stimulation, cardiac muscle is considered to be autorhythmic or intrinsically controlled. The cells of cardiac muscle tissue are striated---that is, they...
what is the pacemaker of the heart and sets off the heart rate?-what sets it off? the SA node, it sets itself off spontaneously Neural influence of heart-what NT is sympathetic and what its affect on the heart? how Norepinepherine is sympathetic, it increaes HR by increasing the pacin...
The cardiovascular system (CVS) is made up of the heart, blood vessels, and blood. The fundamental function of CVS is to transport substances to and from all parts of the body. The heart is the major pumping organ, pressurizing blood for circulation thro