Labelling The Heart Flashcards
1
Q
The pulmonary artery takes blood to the _____
A
The pulmonary artery tales blood to the lungs
2
Q
The aorta takes blood to the ____
A
The aorta takes blood to the body
3
Q
What does the heart do
A
Receives blood from veins, pumps blood under high pressure into the arteries
4
Q
What keeps the blood flowing in one direction through the heart
A
The bicuspid and tricuspid valves that lie between the atria and ventricles prevent backflow
5
Q
Explain why the walls of the ventricles thicker than the atria
A
Atria only has to pump blood down into ventricles - a very short distance so little pressure is required. The ventricles have to pump the blood a greater distance to the orange so a higher pressure is required. The thicker muscle generates greater force.
