Name two ways in which electrical activity can be measured in the body
Using a concentric needle electrode or using surface electrodes
1 of 21
Describe the function of concentric needle electrodes
They can be used to detect electrical activity in a very small area. It is invasive so there is a risk of infection.
2 of 21
Describe the function of surface electrodes
They are placed on the body and a good electrical contact is made with a saline (sodium chloride) gel. It is non-invasive but cannot be used in very precise work.
3 of 21
What does the right atrium and ventricle do?
Right atrium receives deoxygenated blood from the body and the right ventricle pumps deoxygenated blood to the lungs
4 of 21
What does the left atrium and ventricle do?
Left atrium receives oxygenated blood from the lungs and the left ventricle pumps oxygenated blood through the aorta
5 of 21
What is the pulmonary vein and the pulmonary artery?
Comments
No comments have yet been made