4.4 helping the heart Flashcards
(4 cards)
1
Q
How can damaged heart valves be replaced?
A
Using biological or mechanical valves
2
Q
How is the resting heart rate controlled?
A
It is controlled by a group of cells in the right atrium that form a natural pacemaker
3
Q
What are artificial pacemakers?
A
Electrical devices used to correct irregularities in the heart rhythm
4
Q
Why are artificial hearts used?
A
They are occasionally used to keep patients alive while they wait for a transplant, or for their heart to rest as an aid to recovery
