The Heart Flashcards
1
Q
What does the heart do?
A
Pump blood around the body
2
Q
What makes up the circulatory system?
A
Both the heart and the blood vessels together
3
Q
What does the circulatory system do?
A
Delivers oxygen and nutrients to all parts of the body
4
Q
What do the pulmonary arteries do?
A
Carried deoxygenated blood from the heart to the lungs
5
Q
What does the aorta do?
A
Carried oxygenated blood around the body from the heart to the body
6
Q
What does the pulmonary vein do?
A
Brings oxygenated blood from the lungs to the heart
7
Q
What do valves do?
A
Prevent back flow of blood
8
Q
Why most the left ventricle muscle wall be thicker than the right ventricle?
A
Because it pushes blood all round the body
9
Q
What is the process of blood circulation?
A
- Blood enters the atria
- The atria contracts forcing blood into the ventricles
- The ventricles contract forcing blood into the arteries
- Blood flows through arteries to the organs and returns to the heart through veins
