ECG Lead Positioning Question 1. ECG is lead I. Answer: To record ECG, the surface of the body is connected to the ECG machine by means of electrodes called ECG leads. Lead-I: It is obtained by connecting right arm and left arm. The right arm is connected to the negative terminal of the instrument. The left arm is connected to the positive terminal of the … [Read more...] about ECG Lead Positioning
Anatomy
Heart Murmurs – Symptoms & Causes
Heart Murmurs - Symptoms & Causes Question 1. Cardiac murmur. Answer: Abnormal heart sounds are called cardiac murmurs: They are produced during valvular diseases and septal defects. Types: 1. Systolic murmur. Produced during systole of heart. 2. Diastolic murmur. Produced during diastole of heart. 3. Continuous murmur. It is produced … [Read more...] about Heart Murmurs – Symptoms & Causes
Atrial Fibrillation
Atrial Fibrillation Question 1. Fibrillation. Answer: 1. Atrial fibrillation: In this, the atria shows irregular and rapid beats. Rate reaches 300-400 beats/minute. Cause: Due to circus movement of impulses within atrial musculature. 2. Ventricular fibrillation: In this, ventricles beat very rapidly and irregularly. Rate reaches 400-500 … [Read more...] about Atrial Fibrillation
Hemorrhage
Hemorrhage "What is hemorrhage? A detailed question and answers guide" Question 1. Hemorrhage. Answer: Definition: Haemorrhage refers to excess loss of blood due to the rupture of blood vessels. Types: 1. Acute haemorrhage - sudden loss of large amount of blood. 2. Chronic haemorrhage. Continuous loss of blood for a long time. "Understanding … [Read more...] about Hemorrhage
Cardiac Muscle
Cardiac Muscle Question 1. Structure of cardiac muscle Answer: Cardiac muscle is involuntary, striated muscle The fibres are branched and interlock freely with each other Each is surrounded by a cell membrane called sarcolemma Intercalated discs occurs at the contact of two muscle fibres Gap junction is present in the intercalated discs along the sides of the … [Read more...] about Cardiac Muscle