What does the term electrocardiography mean?
Definition of electrocardiograph : an instrument for recording the changes of electrical potential occurring during the heartbeat used especially in diagnosing abnormalities of heart action.
What is normal electrocardiography?
The normal range of the ECG differed between men and women: heart rate 49 to 100 bpm vs. 55 to 108 bpm, P wave duration 81 to 130 ms vs. 84 to 130 ms, PR interval 119 to 210 ms vs. 120 to 202 ms, QRS duration 74 to 110 ms vs.
Why is electrocardiogram called EKG?
In order to avoid confusion, it became a convention to use the abbreviation for the German spelling—elektrokardiogramm—for the heart test, which is why it is commonly called an EKG.
What is electrocardiogram Class 11?
Electrocardiograph (ECG) ECG is a graphical representation of the electrical activity of the heart during a cardiac cycle. To obtain a standard ECG, a patient is connected to the machine with three electrical leads, one to each wrist and to the left ankle, that continuously monitor the heart activity.
What is EKG 12-lead test?
A 12-lead electrocardiogram (ECG) is a medical test that is recorded using leads, or nodes, attached to the body. Electrocardiograms, sometimes referred to as ECGs, capture the electrical activity of the heart and transfer it to graphed paper.
How is an EKG done on a woman?
Electrodes (small, plastic patches that stick to the skin) are placed at certain spots on the chest, arms, and legs. The electrodes are connected to an ECG machine by lead wires. The electrical activity of the heart is then measured, interpreted, and printed out. No electricity is sent into the body.
How much does the conduction system of the heart cost?
Only $47.88/year Exercise 31 Conduction system of the heart and electrocardiography STUDY Flashcards Learn Write Spell Test PLAY Match Gravity Created by cstrysko Terms in this set (16) List the elements of the intrinsic conduction system in order, starting from the SA node
What are the parts of the heart conduction system?
The parts of the heart conduction system can be divided into those that generate action potentials (nodal tissue) and those that conduct them (conducting fibers). Although all parts have the ability to generate action potentials and thus heart contractions, the sinuatrial (SA) node is the primary impulse initiator and regulator in a healthy heart.
What is cardiac conduction and how does it work?
The cardiac conduction system involves the spread of electrical activity from the sinoatrial node, to the atrioventricular node, down the bundle of His and along the Purkinje fibres. As the electrical activity spreads along the heart’s conduction system it initiates myocardial contraction in the surrounding myocardial tissue.
What is the electrical system of the heart?
The electrical system is intrinsic to the heart meaning that contraction can persist in the absence of neuronal input. Components of the cardiac conduction system The cardiac conduction system involves the spread of electrical activity from the sinoatrial node, to the atrioventricular node, down the bundle of His and along the Purkinje fibres.