Helping the Heart

Cards (12)

Why are leaky valves?
The blood could flow in the wrong direction
How can leaky valves be fixed?
Artificial or animal valves can be inserted in the heart to replace damaged valves
What bmp do adults have as a natural resting heart rate?
70bpm
What is the natural resting heart controlled by?
a group of cells that act as a pacemaker
Where is the natural pacemaker located?
in the right atrium
How does the rhythm of the heart become irregular?
when the natural pacemaker doesn't work properly |
What is an artificial pacemaker?
an electric device that can be fitted in the chest to correct irregularities in the heart rate
If a person has a very weak opr diseased heart what might they require?
a heart transplant
What are artificial hearts used for?
keep patients alive while waiting for a heart transplant
allow the heart to rest as an aid to recovery
What is a disadvantage of an artificial heart or artificial valve?
the person needs to take drugs to prevent the blood from clotting
Why do patients with artificial valves need drugs?
to reduce the risk of clots
What does an artificial heart use to pump blood around the body?
air pressure