ILO 3: discuess the impact of the cardiac cycle pressure and how it can be monitored

what is meant by an ECG

measures heart rate and pressure

AKA electrocardiogram

state the name of the graph produced by an ECG

produces distinct waves

known as a PQRST graph

describe and explain why and how electrodes are placed on the skin

place electroces onto the skin to detect electtical impulses and produces the ECG

explain what causes the first wave

Atrial depolarisation initiated by the SAN causes a P-wave.

expain what causes the second

The QRS wave is caused by the depolarisation of the ventricles from Q to R

The polarisation of the R to S is initiated by the AVN and transmitted along the bundle of his

explain what causes the third wave

the t wave is caused by ventricular repolariasation (diastole)

describe the differences in atrial an ventricular press during diastole

the atrium has higher pressure as the blood is flowing through the atria