the heart Flashcards
1
Q
what does the right ventricle do
A
pumps deoxygenated blood to the lungs to take in oxygen
2
Q
what does the left ventricle do
A
pumps oxygenated blood around all the organs in the body
3
Q
what do valves do
A
prevent the blood from flowing in the other direction
4
Q
name the four chambers
A
right atrium, right ventricle, left atrium, left ventricle
5
Q
what is the resting heart rate controlled by
A
a group of cells in the right atrium wall that act as a pacemaker
6
Q
what action is taken if pacemaker cells do not work
A
device implanted under the skin with a wire going to the heart, produces an electric current to keep heart beating regularly
