MLA week 1 ECG & Cardiac Conduction System
Help!
|
|
||||
|---|---|---|---|---|---|
| ECG | ECG # Electrocardiogram = records the electrical impulses that occur in the myocardium during a cardiac cycle.
🗑
|
||||
| The SA node triggers an impulse, the atrial fibers produce an electrial change called a "__" wave | P - wave
🗑
|
||||
| The heart is located in the "______" cavity | Thoracic or chest cavity
🗑
|
||||
| The apex of the heart points towards the | Left Hip
🗑
|
||||
| Give 5 examples why a dr. may order a ECG | After a Myocardial infarction - Symptoms - due to prescribed medications - insertion of a pacemaker - heart condition
🗑
|
||||
| Atrioventrical valves | tricuspid and mitral valves
🗑
|
||||
| 5 major vessels | Superior Vena Cava; Inferior Vena Cava; Pulmonary Artery; Pulmonary Veins; Aorta
🗑
|
||||
| 3 Cardiac cells | 1; Automaticity (initiates the impulse) 2; Conductivity (passes the impulse along) 3; Contractility ( reacts to the impulse)
🗑
|
||||
| When a cardiac cell is resting it is | Polarised - resting
🗑
|
||||
| When an electrical impulse is recieved it is | Depolarised - action
🗑
|
||||
| Once the pathway has been depolarised it is | REpolarised - REcovery
🗑
|
||||
| What is the order of primary cardiac conduction | SA nodes - VA nodes - Bundle of His (right and left) - Purkinje fibers
🗑
|
||||
| P wave | After the SA node fires spontaneously, a wave of depolarization spreads through the Atria, creating a wave.
🗑
|
||||
| What happens immediately after the P wave | There is a pause (as the impulse passes through the AV node) a straight line on the ECG
🗑
|
||||
| In the QRS complex - any wave above the baseline is called a "__" wave | R wave
🗑
|
||||
| A negative deflection following an R wave is an "__" wave | S wave
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Sinful
Popular Phlebotomy sets