What is the purpose of a pacemaker?
Keeps the heart beating
To correct arrhythmias
To speed up the heart beat
To slow down the heart beat
Artificial joints can be made from a variety of materials. Select all of the below materials that artificial joints are made from.
Titanium
Malleable lead
Porous stainless steel
Brass
Ultra high molecular weight polyethylene
Artificial valves are constructed from treated tissues which have been obtained from pigs or cows.
