A3 Cardiovascular And Respatory System

Question 1

Systole

Answer 1

Contracting

Question 2

Diastole

Answer 2

Relaxing

Question 3

Depolarised

Answer 3

Contracting

Question 4

Polarised

Answer 4

Relaxing

Question 5

What does a p wave show

Answer 5

Atrial systole (contraction)

Question 6

What does QRS show

Answer 6

Ventricular systole

Question 7

What is a t wave

Answer 7

Relaxation of ventricles

Question 8

What is each peak on the ecg

Answer 8

Each peak is one heart beat

Question 9

Why is there a gap in ecg

Answer 9

The gap allows the atria to empty so blood can flow down to the ventricles

Question 10

How does an ecg work

Answer 10

Electrodes are placed on the chest
These detect electrical impulses of the heart and send it onto a computer to be read and analysed

Question 11

What are ecgs used for

Answer 11

They can be used to diagnose many heart conditions

Question 12

What is bradycardia

Answer 12

When the heart rate is to slow

Question 13

What is tachycardia

Answer 13

When someone’s heart rate is to height
Above 100 bpm

Question 14

What is arrhythmia

Answer 14

When there’s irregular heart rhythm