In this article we will discuss about the structure of junctional tissues of human heart with the help of suitable diagram. Cardiac muscle consists essentially of certain specialised structures which are responsible for initiation and transmission of cardiac impulses at a higher rate than the rest of the muscle. Those specialised cardiac tissues operate such mechanism are collectively known as [...]
The following points highlight the six major cardiac disorders that occurs in human body. The disorders are: 1. Heart Block 2. Ventricular Premature Beat 3. Ventricular Paroxysmal Tachycardia 4. Ventricular Fibrillation 5. Ischaemic Heart Disease 6. Myocardial Infarction. Cardiac Disorder # 1. Heart Block: Heart block is the condition when conduction of impulse from pacemaker area through the conducting tissue [...]
In this article we will discuss about the transmission of cardiac impulse of humans with the help of suitable diagram. 1. Conduction over Atrial Muscle: Cardiac impulse originated at the S.A node is transmitted over both the atria like concentric waves and thus the P wave is produced in E.C.G. (Electrocardiogram). The spread of electrical impulse through the S.A. node [...]