1.4 function of the heart Flashcards
function of the heart
1
Q
Double pump
A
blood enter the two atria and each atrium contacts pushing blood down into ventricles through tricuspid and bicuspid values.
2
Q
Functions of the heart
A
- the heart is the primary muscle of the body
- beats continuously
- provides the tissues and cells with oxygen and nutrients
- the double pup is down as the cardiac cycle and on average happens 70 times a minute.
3
Q
systole
A
the stage of the heart cycle in which heart muscle contracts to pump blood.
4
Q
diastole
A
the period when the heart muscle is relaxing and blood pressure is at its lowest.
5
Q
Cardiac cycle
A
refers to the pattern of contraction and relaxation of the heart during one complete heartbeat.
6
Q
Right side of the heart is…
A
is less muscular to prevent blood from entering the lungs under too much pressure. If it did, water from the blood would be forced into the airspaces of the lungs, drowning us.
7
Q
Left ventricle wall is..
A
much thicker than the right.
